Updating IE Test Center sources to IE9 RC1.

author: David Fugate <dfugate@microsoft.com> 2011-02-02 09:57:23 -0800
committer: David Fugate <dfugate@microsoft.com> 2011-02-02 09:57:23 -0800
commit: daf5af6174581ee61a603fb24b067622dddea4a3 (patch)
tree: 6738fd7aac306a28a9fffb1f41d8bb66d266b2e0 /test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20
parent: fa6d5ee55897b5d4f4431fad55f0e7cf93b920b1 (diff)
download: test262-daf5af6174581ee61a603fb24b067622dddea4a3.tar.gz
186 files changed, 0 insertions, 9315 deletions
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-0-1.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-0-1.js
deleted file mode 100644
index 2cd3adcd3..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-0-1.js
+++ /dev/null
@@ -1,36 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-0-1",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-0-1.js",
-
-description: "Array.prototype.filter must exist as a function",
-
-test: function testcase() {
-  var f = Array.prototype.filter;
-  if (typeof(f) === "function") {
-    return true;
-  }
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-0-2.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-0-2.js
deleted file mode 100644
index 8c61ad004..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-0-2.js
+++ /dev/null
@@ -1,39 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-0-2",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-0-2.js",
-
-description: "Array.prototype.filter.length must be 1",
-
-test: function testcase() {
-  if (Array.prototype.filter.length === 1) {
-    return true;
-  }
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-1.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-1.js
deleted file mode 100644
index 50e08324a..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-1.js
+++ /dev/null
@@ -1,42 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-    id: "15.4.4.20-1-1",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-1.js",
-
-    description: "Array.prototype.filter applied to undefined throws a TypeError",
-
-    test: function testcase() {
-        try {
-            Array.prototype.filter.call(undefined); // TypeError is thrown if value is undefined
-            return false;
-        } catch (ex) {
-            return ex instanceof TypeError;
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-10.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-10.js
deleted file mode 100644
index 1262abd38..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-10.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-1-10",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-10.js",
-
-    description: "Array.prototype.filter applied to the Math object",
-
-    test: function testcase() {
-        function callbackfn(val, idx, obj) {
-            return '[object Math]' === Object.prototype.toString.call(obj);
-        }
-
-        try {
-            Math.length = 1;
-            Math[0] = 1;
-            var newArr = Array.prototype.filter.call(Math, callbackfn);
-            return newArr[0] === 1;
-        } finally {
-            delete Math[0];
-            delete Math.length;
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-11.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-11.js
deleted file mode 100644
index d6a49dd79..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-11.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-1-11",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-11.js",
-
-    description: "Array.prototype.filter applied to Date object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj instanceof Date;
-        }
-
-        var obj = new Date();
-        obj.length = 1;
-        obj[0] = 1;
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr[0] === 1;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-12.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-12.js
deleted file mode 100644
index b2b85be78..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-12.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-1-12",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-12.js",
-
-    description: "Array.prototype.filter applied to RegExp object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj instanceof RegExp;
-        }
-
-        var obj = new RegExp();
-        obj.length = 2;
-        obj[1] = true;
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-        return newArr[0] === true;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-13.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-13.js
deleted file mode 100644
index 672e94c60..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-13.js
+++ /dev/null
@@ -1,52 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-1-13",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-13.js",
-
-    description: "Array.prototype.filter applied to the JSON object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return '[object JSON]' === Object.prototype.toString.call(JSON);
-        }
-
-        try {
-            JSON.length = 1;
-            JSON[0] = 1;
-            var newArr = Array.prototype.filter.call(JSON, callbackfn);
-            return newArr[0] === 1;
-        } finally {
-            delete JSON.length;
-            delete JSON[0];
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-14.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-14.js
deleted file mode 100644
index 368ee6e95..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-14.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-
-ES5Harness.registerTest( {
-
-    id: "15.4.4.20-1-14",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-14.js",
-
-    description: "Array.prototype.filter applied to Error object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj instanceof Error;
-        }
-
-        var obj = new Error();
-        obj.length = 1;
-        obj[0] = 1;
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr[0] === 1;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-15.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-15.js
deleted file mode 100644
index 03c27ea11..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-15.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-1-15",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-15.js",
-
-    description: "Array.prototype.filter applied to the Arguments object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return '[object Arguments]' === Object.prototype.toString.call(obj);
-        }
-
-        var obj = (function () {
-            return arguments;
-        }("a", "b"));
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr[0] === "a" && newArr[1] === "b";
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-2.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-2.js
deleted file mode 100644
index 62817fce4..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-2.js
+++ /dev/null
@@ -1,42 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-    id: "15.4.4.20-1-2",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-2.js",
-
-    description: "Array.prototype.filter applied to null throws a TypeError",
-
-    test: function testcase() {
-        try {
-            Array.prototype.filter.call(null);
-            return false;
-        } catch (ex) {
-            return ex instanceof TypeError;
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-3.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-3.js
deleted file mode 100644
index 04e51530f..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-3.js
+++ /dev/null
@@ -1,53 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-1-3",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-3.js",
-
-    description: "Array.prototype.filter applied to boolean primitive",
-
-    test: function testcase() {
-        function callbackfn(val, idx, obj) {
-            return obj instanceof Boolean;
-        }
-
-        try {
-            Boolean.prototype[0] = true;
-            Boolean.prototype.length = 1;
-
-            var newArr = Array.prototype.filter.call(false, callbackfn);
-            return newArr[0] === true;
-
-        } finally {
-            delete Boolean.prototype[0];
-            delete Boolean.prototype.length;
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-4.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-4.js
deleted file mode 100644
index e3976363e..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-4.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-
-ES5Harness.registerTest( {
-
-    id: "15.4.4.20-1-4",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-4.js",
-
-    description: "Array.prototype.filter applied to Boolean Object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj instanceof Boolean;
-        }
-
-        var obj = new Boolean(true);
-        obj.length = 2;
-        obj[0] = 11;
-        obj[1] = 12;
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr[0] === 11 && newArr[1] === 12;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
-\ No newline at end of file
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-5.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-5.js
deleted file mode 100644
index bb39cb5ef..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-5.js
+++ /dev/null
@@ -1,52 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-1-5",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-5.js",
-
-    description: "Array.prototype.filter applied to number primitive",
-
-    test: function testcase() {
-        function callbackfn(val, idx, obj) {
-            return obj instanceof Number;
-        }
-
-        try {
-            Number.prototype[0] = 1;
-            Number.prototype.length = 1;
-
-            var newArr = Array.prototype.filter.call(2.5, callbackfn);
-            return newArr[0] === 1;
-        } finally {
-            delete Number.prototype[0];
-            delete Number.prototype.length;
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-6.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-6.js
deleted file mode 100644
index 3b5a09951..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-6.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-
-ES5Harness.registerTest( {
-
-    id: "15.4.4.20-1-6",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-6.js",
-
-    description: "Array.prototype.filter applied to Number object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj instanceof Number;
-        }
-
-        var obj = new Number(-128);
-        obj.length = 2;
-        obj[0] = 11;
-        obj[1] = 12;
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-        return newArr[0] === 11 && newArr[1] === 12;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    } 
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-7.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-7.js
deleted file mode 100644
index a39406860..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-7.js
+++ /dev/null
@@ -1,46 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-1-7",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-7.js",
-
-    description: "Array.prototype.filter applied to string primitive",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj instanceof String;
-        }
-
-        var newArr = Array.prototype.filter.call("abc", callbackfn);
-
-        return newArr[0] === "a";
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-8.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-8.js
deleted file mode 100644
index d95d9d4ea..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-8.js
+++ /dev/null
@@ -1,46 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-1-8",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-8.js",
-
-    description: "Array.prototype.filter applied to String object",
-
-    test: function testcase() {
-        function callbackfn(val, idx, obj) {
-            return obj instanceof String;
-        }
-
-        var obj = new String("abc");
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr[0] === "a";
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-9.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-9.js
deleted file mode 100644
index 14a568f34..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-9.js
+++ /dev/null
@@ -1,52 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-1-9",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-1-9.js",
-
-    description: "Array.prototype.filter applied to Function object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj instanceof Function;
-        }
-
-        var obj = function (a, b) {
-            return a + b;
-        };
-        obj[0] = 11;
-        obj[1] = 9;
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr[0] === 11 && newArr[1] === 9;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-10-1.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-10-1.js
deleted file mode 100644
index be1cfe32d..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-10-1.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-10-1",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-10-1.js",
-
-description: "Array.prototype.filter doesn't mutate the Array on which it is called on",
-
-test: function testcase() {
-
-  function callbackfn(val, idx, obj)
-  {
-    return true;
-  }
-  var srcArr = [1,2,3,4,5];
-  srcArr.filter(callbackfn);
-  if(srcArr[0] === 1 &&
-     srcArr[1] === 2 &&
-     srcArr[2] === 3 &&
-     srcArr[3] === 4 &&
-     srcArr[4] === 5)
-  {
-    return true;
-  }
-
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-10-2.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-10-2.js
deleted file mode 100644
index e7f3d1715..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-10-2.js
+++ /dev/null
@@ -1,53 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-10-2",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-10-2.js",
-
-description: "Array.prototype.filter returns new Array with length equal to number of true returned by callbackfn",
-
-test: function testcase() {
-
-  function callbackfn(val, idx, obj)
-  {
-    if(val % 2)
-      return true;
-    else
-      return false;
-  }
-  var srcArr = [1,2,3,4,5];
-  var resArr = srcArr.filter(callbackfn);
-  if(resArr.length === 3 &&
-     resArr[0] === 1 &&
-     resArr[1] === 3 &&
-     resArr[2] === 5)
-  {
-    return true;
-  }
-
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-10-3.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-10-3.js
deleted file mode 100644
index 59a93aa1b..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-10-3.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-10-3",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-10-3.js",
-
-description: "Array.prototype.filter - subclassed array when length is reduced",
-
-test: function testcase() {
-  foo.prototype = new Array(1, 2, 3);
-  function foo() {}
-  var f = new foo();
-  f.length = 1;
-  
-  function cb(){return true;}
-  var a = f.filter(cb);
-  
-  if (Array.isArray(a) &&
-      a.length === 1) {
-    return true;
-  }
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-10-4.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-10-4.js
deleted file mode 100644
index 7209ebe15..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-10-4.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-10-4",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-10-4.js",
-
-description: "Array.prototype.filter doesn't visit expandos",
-
-test: function testcase() {
-
-  var callCnt = 0;
-  function callbackfn(val, idx, obj)
-  {
-    callCnt++;
-  }
-  var srcArr = [1,2,3,4,5];
-  srcArr["i"] = 10;
-  srcArr[true] = 11;
-
-  var resArr = srcArr.filter(callbackfn);
-  if(callCnt == 5)
-  {
-    return true;
-  }
-
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-1.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-1.js
deleted file mode 100644
index 13c6220ec..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-1.js
+++ /dev/null
@@ -1,52 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-1",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-1.js",
-
-    description: "Array.prototype.filter applied to Array-like object, 'length' is own data property",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj.length === 2;
-        }
-
-        var obj = {
-            0: 12,
-            1: 11,
-            2: 9,
-            length: 2
-        };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 2;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-10.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-10.js
deleted file mode 100644
index 4101cc742..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-10.js
+++ /dev/null
@@ -1,61 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-10",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-10.js",
-
-    description: "Array.prototype.filter applied to Array-like object, 'length' is inherited accessor property",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj.length === 2;
-        }
-
-        var proto = {};
-
-        Object.defineProperty(proto, "length", {
-            get: function () {
-                return 2;
-            },
-            configurable: true
-        });
-
-        var Con = function () { };
-        Con.prototype = proto;
-
-        var child = new Con();
-        child[0] = 12;
-        child[1] = 11;
-        child[2] = 9;
-
-        var newArr = Array.prototype.filter.call(child, callbackfn);
-        return newArr.length === 2;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter) && fnExists(Object.defineProperty);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-11.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-11.js
deleted file mode 100644
index 80833cc21..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-11.js
+++ /dev/null
@@ -1,55 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-11",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-11.js",
-
-    description: "Array.prototype.filter applied to Array-like object, 'length' is own accessor property without a get function",
-
-    test: function testcase() {
-
-        var accessed = false;
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return true;
-        }
-
-        var obj = {
-            0: 11,
-            1: 12
-        };
-        Object.defineProperty(obj, "length", {
-            set: function () { },
-            configurable: true
-        });
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-        return newArr.length === 0 && !accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter) && fnExists(Object.defineProperty);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-12.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-12.js
deleted file mode 100644
index 304451cc6..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-12.js
+++ /dev/null
@@ -1,63 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-12",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-12.js",
-
-    description: "Array.prototype.filter - 'length' is own accessor property without a get function that overrides an inherited accessor property",
-
-    test: function testcase() {
-
-        var accessed = false;
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return true;
-        }
-
-        try {
-            Object.defineProperty(Object.prototype, "length", {
-                get: function () {
-                    return 2;
-                },
-                configurable: true
-            });
-
-            var obj = { 0: 12, 1: 11 };
-            Object.defineProperty(obj, "length", {
-                set: function () { },
-                configurable: true
-            });
-
-            var newArr = Array.prototype.filter.call(obj, callbackfn);
-            return newArr.length === 0 && !accessed;
-        } finally {
-            delete Object.prototype.length;
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter) && fnExists(Object.defineProperty);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-13.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-13.js
deleted file mode 100644
index 560eeaacf..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-13.js
+++ /dev/null
@@ -1,59 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-13",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-13.js",
-
-    description: "Array.prototype.filter applied to the Array-like object that 'length' is inherited accessor property without a get function",
-
-    test: function testcase() {
-
-        var accessed = false;
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return true;
-        }
-
-        var proto = {};
-        Object.defineProperty(proto, "length", {
-            set: function () { },
-            configurable: true
-        });
-
-        var Con = function () { };
-        Con.prototype = proto;
-
-        var child = new Con();
-        child[0] = 11;
-        child[1] = 12;
-
-        var newArr = Array.prototype.filter.call(child, callbackfn);
-        return newArr.length === 0 && !accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter) && fnExists(Object.defineProperty);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-14.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-14.js
deleted file mode 100644
index 8ad7d6952..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-14.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-14",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-14.js",
-
-    description: "Array.prototype.filter applied to the Array-like object that 'length property doesn't exist",
-
-    test: function testcase() {
-
-        var accessed = false;
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return true;
-        }
-
-        var obj = { 0: 11, 1: 12 };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-        return newArr.length === 0 && !accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-17.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-17.js
deleted file mode 100644
index 088f28964..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-17.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-17",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-17.js",
-
-    description: "Array.prototype.filter applied to the Arguments object, which implements its own property get method",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj.length === 2;
-        }
-
-        var func = function (a, b) {
-            var newArr = Array.prototype.filter.call(arguments, callbackfn);
-            return newArr.length === 2;
-        };
-
-        return func(12, 11);
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-18.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-18.js
deleted file mode 100644
index e5cff1f2a..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-18.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-18",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-18.js",
-
-    description: "Array.prototype.filter applied to String object, which implements its own property get method",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj.length === 3;
-        }
-
-        var str = new String("012");
-
-        var newArr = Array.prototype.filter.call(str, callbackfn);
-        return newArr.length === 3;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-19.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-19.js
deleted file mode 100644
index e0a5173a0..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-19.js
+++ /dev/null
@@ -1,52 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-19",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-19.js",
-
-    description: "Array.prototype.filter applied to Function object, which implements its own property get method",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj.length === 2;
-        }
-
-        var fun = function (a, b) {
-            return a + b;
-        };
-        fun[0] = 12;
-        fun[1] = 11;
-        fun[2] = 9;
-
-        var newArr = Array.prototype.filter.call(fun, callbackfn);
-        return newArr.length === 2;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-2.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-2.js
deleted file mode 100644
index f8ab2a943..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-2.js
+++ /dev/null
@@ -1,44 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-2",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-2.js",
-
-    description: "Array.prototype.filter - 'length' is own data property on an Array",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj.length === 2;
-        }
-
-        var newArr = [12, 11].filter(callbackfn);
-        return newArr.length === 2;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-3.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-3.js
deleted file mode 100644
index a0956ac39..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-3.js
+++ /dev/null
@@ -1,55 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-3",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-3.js",
-
-    description: "Array.prototype.filter applied to Array-like object, 'length' is an own data property that overrides an inherited data property",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj.length === 2;
-        }
-
-        var proto = { length: 3 };
-
-        var Con = function () { };
-        Con.prototype = proto;
-
-        var child = new Con();
-        child.length = 2;
-        child[0] = 12;
-        child[1] = 11;
-        child[2] = 9;
-
-        var newArr = Array.prototype.filter.call(child, callbackfn);
-        return newArr.length === 2;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-4.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-4.js
deleted file mode 100644
index d0e492526..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-4.js
+++ /dev/null
@@ -1,52 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-4",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-4.js",
-
-    description: "Array.prototype.filter - 'length' is own data property that overrides an inherited data property on an Array",
-
-    test: function testcase() {
-
-        var arrProtoLen;
-
-        function callbackfn(val, idx, obj) {
-            return obj.length === 2;
-        }
-
-        try {
-            arrProtoLen = Array.prototype.length;
-            Array.prototype.length = 0;
-            var newArr = [12, 11].filter(callbackfn);
-            return newArr.length === 2;
-        } finally {
-            Array.prototype.length = arrProtoLen;
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-5.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-5.js
deleted file mode 100644
index edbcf6c80..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-5.js
+++ /dev/null
@@ -1,65 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-5",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-5.js",
-
-    description: "Array.prototype.filter to Array-like object, 'length' is an own data property that overrides an inherited accessor property",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj.length === 2;
-        }
-
-        var proto = {};
-
-        Object.defineProperty(proto, "length", {
-            get: function () {
-                return 3;
-            },
-            configurable: true
-        });
-
-        var Con = function () { };
-        Con.prototype = proto;
-
-        var child = new Con();
-        Object.defineProperty(child, "length", {
-            value: 2,
-            configurable: true
-        });
-        child[0] = 12;
-        child[1] = 11;
-        child[2] = 9;
-
-        var newArr = Array.prototype.filter.call(child, callbackfn);
-        return newArr.length === 2;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter) && fnExists(Object.defineProperty);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-6.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-6.js
deleted file mode 100644
index 9d69b390c..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-6.js
+++ /dev/null
@@ -1,54 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-6",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-6.js",
-
-    description: "Array.prototype.filter applied to Array-like object, 'length' is an inherited data property",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj.length === 2;
-        }
-
-        var proto = { length: 2 };
-
-        var Con = function () { };
-        Con.prototype = proto;
-
-        var child = new Con();
-        child[0] = 12;
-        child[1] = 11;
-        child[2] = 9;
-
-        var newArr = Array.prototype.filter.call(child, callbackfn);
-        return newArr.length === 2;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-7.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-7.js
deleted file mode 100644
index 258082958..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-7.js
+++ /dev/null
@@ -1,57 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-7",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-7.js",
-
-    description: "Array.prototype.filter applied to Array-like object, 'length' is an own accessor property",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj.length === 2;
-        }
-
-        var obj = {};
-
-        Object.defineProperty(obj, "length", {
-            get: function () {
-                return 2;
-            },
-            configurable: true
-        });
-
-        obj[0] = 12;
-        obj[1] = 11;
-        obj[2] = 9;
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-        return newArr.length === 2;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter) && fnExists(Object.defineProperty);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-8.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-8.js
deleted file mode 100644
index 95bb92502..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-8.js
+++ /dev/null
@@ -1,62 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-8",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-8.js",
-
-    description: "Array.prototype.filter applied to Array-like object, 'length' is own accessor property that overrides an inherited data property",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj.length === 2;
-        }
-
-        var proto = { length: 3 };
-
-        var Con = function () { };
-        Con.prototype = proto;
-
-        var child = new Con();
-
-        Object.defineProperty(child, "length", {
-            get: function () {
-                return 2;
-            },
-            configurable: true
-        });
-
-        child[0] = 12;
-        child[1] = 11;
-        child[2] = 9;
-
-        var newArr = Array.prototype.filter.call(child, callbackfn);
-        return newArr.length === 2;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter) && fnExists(Object.defineProperty);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-9.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-9.js
deleted file mode 100644
index 634a311b1..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-9.js
+++ /dev/null
@@ -1,69 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-2-9",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-9.js",
-
-    description: "Array.prototype.filter applied to Array-like object, 'length' is an own accessor property that overrides an inherited accessor property",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return obj.length === 2;
-        }
-
-        var proto = {};
-
-        Object.defineProperty(proto, "length", {
-            get: function () {
-                return 3;
-            },
-            configurable: true
-        });
-
-        var Con = function () { };
-        Con.prototype = proto;
-
-        var child = new Con();
-
-        Object.defineProperty(child, "length", {
-            get: function () {
-                return 2;
-            },
-            configurable: true
-        });
-
-        child[0] = 12;
-        child[1] = 11;
-        child[2] = 9;
-
-        var newArr = Array.prototype.filter.call(child, callbackfn);
-        return newArr.length === 2;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter) && fnExists(Object.defineProperty);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-1.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-1.js
deleted file mode 100644
index 58d1aeaf3..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-1.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-1",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-1.js",
-
-    description: "Array.prototype.filter - value of 'length' is undefined",
-
-    test: function testcase() {
-
-        var accessed = false;
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return true;
-        }
-
-        var obj = { 0: 0, 1: 1, length: undefined };
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 0 && !accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-10.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-10.js
deleted file mode 100644
index ebcbafe28..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-10.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-10",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-10.js",
-
-    description: "Array.prototype.filter - value of 'length' is a number (value is NaN)",
-
-    test: function testcase() {
-
-        var accessed = false;
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return true;
-        }
-
-        var obj = { 0: 9, length: NaN };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 0 && !accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-11.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-11.js
deleted file mode 100644
index 07e7f170d..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-11.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-11",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-11.js",
-
-    description: "Array.prototype.filter - 'length' is a string containing a positive number",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = { 1: 11, 2: 9, length: "2" };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-12.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-12.js
deleted file mode 100644
index 8e4527cb1..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-12.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-12",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-12.js",
-
-    description: "Array.prototype.filter - 'length' is a string containing a negative number",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = { 1: 11, 2: 9, length: "-4294967294" };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-13.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-13.js
deleted file mode 100644
index 81d68dc24..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-13.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-13",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-13.js",
-
-    description: "Array.prototype.filter - 'length' is a string containing a decimal number",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = { 1: 11, 2: 9, length: "2.5" };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-14.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-14.js
deleted file mode 100644
index 31409b129..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-14.js
+++ /dev/null
@@ -1,68 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-14",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-14.js",
-
-    description: "Array.prototype.filter - 'length' is a string containing +/-Infinity",
-
-    test: function testcase() {
-
-        var accessed1 = false;
-        var accessed2 = false;
-        var accessed3 = false;
-
-        function callbackfn1(val, idx, obj) {
-            accessed1 = true;
-            return true;
-        }
-
-        function callbackfn2(val, idx, obj) {
-            accessed2 = true;
-            return true;
-        }
-
-        function callbackfn3(val, idx, obj) {
-            accessed3 = true;
-            return true;
-        }
-
-        var obj1 = { 0: 9, length: "Infinity" };
-        var obj2 = { 0: 9, length: "-Infinity" };
-        var obj3 = { 0: 9, length: "+Infinity" };
-
-        var newArr1 = Array.prototype.filter.call(obj1, callbackfn1);
-        var newArr2 = Array.prototype.filter.call(obj2, callbackfn2);
-        var newArr3 = Array.prototype.filter.call(obj3, callbackfn3);
-
-        return !accessed1 && newArr1.length === 0 &&
-            !accessed2 && newArr2.length === 0 && 
-            !accessed3 && newArr3.length === 0;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-15.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-15.js
deleted file mode 100644
index 020ed5e2b..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-15.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-15",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-15.js",
-
-    description: "Array.prototype.filter - 'length' is a string containing an exponential number",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = { 1: 11, 2: 9, length: "2E0" };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-16.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-16.js
deleted file mode 100644
index 572a1b611..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-16.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-16",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-16.js",
-
-    description: "Array.prototype.filter - 'length' is a string containing a hex number",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = { 1: 11, 2: 9, length: "0x0002" };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-17.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-17.js
deleted file mode 100644
index a3d4d1085..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-17.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-17",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-17.js",
-
-    description: "Array.prototype.filter - 'length' is a string containing a number with leading zeros",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = { 1: 11, 2: 9, length: "0002.00" };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-18.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-18.js
deleted file mode 100644
index d891bc53d..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-18.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-18",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-18.js",
-
-    description: "Array.prototype.filter - value of 'length' is a string that can't convert to a number",
-
-    test: function testcase() {
-
-        var accessed = false;
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return true;
-        }
-
-        var obj = { 0: 9, length: "asdf!_" };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return !accessed && newArr.length === 0;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-19.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-19.js
deleted file mode 100644
index ba4183b54..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-19.js
+++ /dev/null
@@ -1,55 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-19",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-19.js",
-
-    description: "Array.prototype.filter - value of 'length' is an Object which has an own toString method.",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = {
-            1: 11,
-            2: 9,
-            length: {
-                toString: function () {
-                    return '2';
-                }
-            }
-        };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-2.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-2.js
deleted file mode 100644
index 2146013c5..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-2.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-2",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-2.js",
-
-    description: "Array.prototype.filter applied on an Array-like object if 'length' is 1 (length overridden to true(type conversion))",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = { 0: 11, 1: 9, length: true };
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-20.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-20.js
deleted file mode 100644
index 8b721cecc..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-20.js
+++ /dev/null
@@ -1,55 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-20",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-20.js",
-
-    description: "Array.prototype.filter - value of 'length' is an Object which has an own valueOf method.",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = {
-            1: 11,
-            2: 9,
-            length: {
-                valueOf: function () {
-                    return 2;
-                }
-            }
-        };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-21.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-21.js
deleted file mode 100644
index 33add2d83..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-21.js
+++ /dev/null
@@ -1,63 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-21",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-21.js",
-
-    description: "Array.prototype.filter - 'length' is an object that has an own valueOf method that returns an object and toString method that returns a string",
-
-    test: function testcase() {
-
-        var firstStepOccured = false;
-        var secondStepOccured = false;
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = {
-            1: 11,
-            2: 9,
-            length: {
-                valueOf: function () {
-                    firstStepOccured = true;
-                    return {};
-                },
-                toString: function () {
-                    secondStepOccured = true;
-                    return '2';
-                }
-            }
-        };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11 && firstStepOccured && secondStepOccured;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-22.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-22.js
deleted file mode 100644
index b67f78f6a..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-22.js
+++ /dev/null
@@ -1,69 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-22",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-22.js",
-
-    description: "Array.prototype.filter throws TypeError exception when 'length' is an object with toString and valueOf methods that don�t return primitive values",
-
-    test: function testcase() {
-
-        var accessed = false;
-        var firstStepOccured = false;
-        var secondStepOccured = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return true;
-        }
-
-        var obj = {
-            1: 11,
-            2: 12,
-
-            length: {
-                valueOf: function () {
-                    firstStepOccured = true;
-                    return {};
-                },
-                toString: function () {
-                    secondStepOccured = true;
-                    return {};
-                }
-            }
-        };
-
-        try {
-            Array.prototype.filter.call(obj, callbackfn);
-            return false;
-        } catch (ex) {
-            return (ex instanceof TypeError) && !accessed && firstStepOccured && secondStepOccured;
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-23.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-23.js
deleted file mode 100644
index de84a00e7..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-23.js
+++ /dev/null
@@ -1,71 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-23",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-23.js",
-
-    description: "Array.prototype.filter uses inherited valueOf method when 'length' is an object with an own toString and inherited valueOf methods",
-
-    test: function testcase() {
-
-        var valueOfAccessed = false;
-        var toStringAccessed = false;
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var proto = {
-            valueOf: function () {
-                valueOfAccessed = true;
-                return 2;
-            }
-        };
-
-        var Con = function () { };
-        Con.prototype = proto;
-
-        var child = new Con();
-
-        child.toString = function () {
-            toStringAccessed = true;
-            return '1';
-        };
-
-        var obj = {
-            1: 11,
-            2: 9,
-            length: child
-        };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11 && valueOfAccessed && !toStringAccessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-24.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-24.js
deleted file mode 100644
index 096b3e9eb..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-24.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-24",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-24.js",
-
-    description: "Array.prototype.filter - value of 'length' is a positive non-integer, ensure truncation occurs in the proper direction",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = {
-            1: 11,
-            2: 9,
-            length: 2.685
-        };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-25.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-25.js
deleted file mode 100644
index 73edaa0ff..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-25.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-25",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-25.js",
-
-    description: "Array.prototype.filter - value of 'length' is a negative non-integer, ensure truncation occurs in the proper direction",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = {
-            1: 11,
-            2: 9,
-            length: -4294967294.5
-        };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-28.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-28.js
deleted file mode 100644
index 95aa4689e..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-28.js
+++ /dev/null
@@ -1,52 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-28",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-28.js",
-
-    description: "Array.prototype.filter - value of 'length' is boundary value (2^32)",
-
-    test: function testcase() {
-
-        var accessed = false;
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return true;
-        }
-
-        var obj = {
-            0: 12,
-            length: 4294967296
-        };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return !accessed && newArr.length === 0;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-29.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-29.js
deleted file mode 100644
index 9f8940619..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-29.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-29",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-29.js",
-
-    description: "Array.prototype.filter - value of 'length' is boundary value (2^32 + 1)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = {
-            0: 11,
-            1: 9,
-            length: 4294967297
-        };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-3.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-3.js
deleted file mode 100644
index f3fcaae4f..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-3.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-3",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-3.js",
-
-    description: "Array.prototype.filter - value of 'length' is a number (value is 0)",
-
-    test: function testcase() {
-
-        var accessed = false;
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return true;
-        }
-
-        var obj = { 0: 11, length: 0 };
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 0 && !accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-4.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-4.js
deleted file mode 100644
index 4050cd66e..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-4.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-4",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-4.js",
-
-    description: "Array.prototype.filter - value of 'length' is a number (value is +0)",
-
-    test: function testcase() {
-
-        var accessed = false;
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return true;
-        }
-
-        var obj = { 0: 11, length: +0 };
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 0 && !accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-5.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-5.js
deleted file mode 100644
index 75aecd130..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-5.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-5",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-5.js",
-
-    description: "Array.prototype.filter - value of 'length' is a number (value is -0)",
-
-    test: function testcase() {
-
-        var accessed = false;
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return true;
-        }
-
-        var obj = { 0: 11, length: -0 };
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 0 && !accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-6.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-6.js
deleted file mode 100644
index dd124dac2..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-6.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-6",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-6.js",
-
-    description: "Array.prototype.filter - value of 'length' is a number (value is positive)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = { 1: 11, 2: 9, length: 2 };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-7.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-7.js
deleted file mode 100644
index 9cb69bda4..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-7.js
+++ /dev/null
@@ -1,46 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-7",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-7.js",
-
-    description: "Array.prototype.filter - value of 'length' is a number (value is negative)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = { 1: 11, 2: 9, length: -4294967294 };
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-8.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-8.js
deleted file mode 100644
index de114c7c6..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-8.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-8",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-8.js",
-
-    description: "Array.prototype.filter - value of 'length' is a number (value is Infinity)",
-
-    test: function testcase() {
-
-        var accessed = false;
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return true;
-        }
-
-        var obj = { 0: 9, length: Infinity };
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 0 && !accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-9.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-9.js
deleted file mode 100644
index cc743b5b0..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-9.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-3-9",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-3-9.js",
-
-    description: "Array.prototype.filter - value of 'length' is a number (value is -Infinity)",
-
-    test: function testcase() {
-
-        var accessed = false;
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return true;
-        }
-
-        var obj = { 0: 9, length: -Infinity };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 0 && !accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-1.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-1.js
deleted file mode 100644
index 28717ed9a..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-1.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-4-1",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-1.js",
-
-description: "Array.prototype.filter throws TypeError if callbackfn is undefined",
-
-test: function testcase() {
-
-  var arr = new Array(10);
-  try {
-    arr.filter();    
-  }
-  catch(e) {
-    if(e instanceof TypeError)
-      return true;  
-  }
-
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-10.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-10.js
deleted file mode 100644
index 0b061ac2c..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-10.js
+++ /dev/null
@@ -1,54 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-4-10",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-10.js",
-
-    description: "Array.prototype.filter - the exception is not thrown if exception was thrown by step 2",
-
-    test: function testcase() {
-
-        var obj = { 0: 11, 1: 12 };
-
-        Object.defineProperty(obj, "length", {
-            get: function () {
-                throw new SyntaxError();
-            },
-            configurable: true
-        });
-
-        try {
-            Array.prototype.filter.call(obj, undefined);
-            return false;
-        } catch (ex) {
-            return !(ex instanceof TypeError);
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter) && fnExists(Object.defineProperty);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-11.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-11.js
deleted file mode 100644
index 1b99c9f4f..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-11.js
+++ /dev/null
@@ -1,58 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-4-11",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-11.js",
-
-    description: "Array.prototype.filter - the exception is not thrown if exception was thrown by step 3",
-
-    test: function testcase() {
-
-        var obj = { 0: 11, 1: 12 };
-
-        Object.defineProperty(obj, "length", {
-            get: function () {
-                return {
-                    toString: function () {
-                        throw new SyntaxError();
-                    }
-                };
-            },
-            configurable: true
-        });
-
-        try {
-            Array.prototype.filter.call(obj, undefined);
-            return false;
-        } catch (ex) {
-            return !(ex instanceof TypeError);
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter) && fnExists(Object.defineProperty);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-12.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-12.js
deleted file mode 100644
index c6f00aef1..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-12.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-4-12",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-12.js",
-
-    description: "Array.prototype.filter - 'callbackfn' is a function",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            if (idx === 1) {
-                return val === 9;
-            }
-            return false;
-        }
-
-        var newArr = [11, 9].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 9;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-2.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-2.js
deleted file mode 100644
index e2c533c73..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-2.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-4-2",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-2.js",
-
-description: "Array.prototype.filter throws ReferenceError if callbackfn is unreferenced",
-
-test: function testcase() {
-
-  var arr = new Array(10);
-  try {
-    arr.filter(foo);    
-  }
-  catch(e) {
-    if(e instanceof ReferenceError)
-      return true;  
-  }
-
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-3.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-3.js
deleted file mode 100644
index ccfa7b503..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-3.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-4-3",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-3.js",
-
-description: "Array.prototype.filter throws TypeError if callbackfn is null",
-
-test: function testcase() {
-
-  var arr = new Array(10);
-  try {
-    arr.filter(null);    
-  }
-  catch(e) {
-    if(e instanceof TypeError)
-      return true;  
-  }
-
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-4.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-4.js
deleted file mode 100644
index 4711f9e7d..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-4.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-4-4",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-4.js",
-
-description: "Array.prototype.filter throws TypeError if callbackfn is boolean",
-
-test: function testcase() {
-
-  var arr = new Array(10);
-  try {
-    arr.filter(true);    
-  }
-  catch(e) {
-    if(e instanceof TypeError)
-      return true;  
-  }
-
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-5.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-5.js
deleted file mode 100644
index d590aa28d..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-5.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-4-5",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-5.js",
-
-description: "Array.prototype.filter throws TypeError if callbackfn is number",
-
-test: function testcase() {
-
-  var arr = new Array(10);
-  try {
-    arr.filter(5);    
-  }
-  catch(e) {
-    if(e instanceof TypeError)
-      return true;  
-  }
-
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-6.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-6.js
deleted file mode 100644
index e17627a1d..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-6.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-4-6",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-6.js",
-
-description: "Array.prototype.filter throws TypeError if callbackfn is string",
-
-test: function testcase() {
-
-  var arr = new Array(10);
-  try {
-    arr.filter("abc");    
-  }
-  catch(e) {
-    if(e instanceof TypeError)
-      return true;  
-  }
-
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-7.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-7.js
deleted file mode 100644
index c7c878d4a..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-7.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-4-7",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-7.js",
-
-description: "Array.prototype.filter throws TypeError if callbackfn is Object without [[Call]] internal method",
-
-test: function testcase() {
-
-  var arr = new Array(10);
-  try {
-    arr.filter(new Object());    
-  }
-  catch(e) {
-    if(e instanceof TypeError)
-      return true;  
-  }
-
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-8.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-8.js
deleted file mode 100644
index da6904ba5..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-8.js
+++ /dev/null
@@ -1,57 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-4-8",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-8.js",
-
-    description: "Array.prototype.filter - side effects produced by step 2 are visible when an exception occurs",
-
-    test: function testcase() {
-
-        var obj = { 0: 11, 1: 12 };
-
-        var accessed = false;
-
-        Object.defineProperty(obj, "length", {
-            get: function () {
-                accessed = true;
-                return 2;
-            },
-            configurable: true
-        });
-
-        try {
-            Array.prototype.filter.call(obj, null);
-            return false;
-        } catch (ex) {
-            return ex instanceof TypeError && accessed;
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter) && fnExists(Object.defineProperty);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-9.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-9.js
deleted file mode 100644
index 0c55aec41..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-9.js
+++ /dev/null
@@ -1,61 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-4-9",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-4-9.js",
-
-    description: "Array.prototype.filter - side effects produced by step 3 are visible when an exception occurs",
-
-    test: function testcase() {
-
-        var obj = { 0: 11, 1: 12 };
-
-        var accessed = false;
-
-        Object.defineProperty(obj, "length", {
-            get: function () {
-                return {
-                    toString: function () {
-                        accessed = true;
-                        return "2";
-                    }
-                };
-            },
-            configurable: true
-        });
-
-        try {
-            Array.prototype.filter.call(obj, null);
-            return false;
-        } catch (ex) {
-            return ex instanceof TypeError && accessed;
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter) && fnExists(Object.defineProperty);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-1.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-1.js
deleted file mode 100644
index de184c5f0..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-1.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-5-1",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-1.js",
-
-description: "Array.prototype.filter - thisArg not passed",
-
-test: function testcase() {
-  var innerThisCorrect = false;
-  
-  function callbackfn(val, idx, obj)
-  {
-    innerThisCorrect = this===fnGlobalObject();
-    return true;
-  }
-
-  [1].filter(callbackfn);
-  return innerThisCorrect;    
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-10.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-10.js
deleted file mode 100644
index 69291cbfe..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-10.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-10",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-10.js",
-
-    description: "Array.prototype.filter - Array Object can be used as thisArg",
-
-    test: function testcase() {
-
-        var accessed = false;
-        var objArray = new Array(10);
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return this === objArray;
-        }
-
-
-        var newArr = [11].filter(callbackfn, objArray);
-
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-11.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-11.js
deleted file mode 100644
index 66c96e372..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-11.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-11",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-11.js",
-
-    description: "Array.prototype.filter - String Object can be used as thisArg",
-
-    test: function testcase() {
-
-        var accessed = false;
-        var objString = new String();
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return this === objString;
-        }
-
-        var newArr = [11].filter(callbackfn, objString);
-
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-12.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-12.js
deleted file mode 100644
index cc8833f32..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-12.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-12",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-12.js",
-
-    description: "Array.prototype.filter - Boolean Object can be used as thisArg",
-
-    test: function testcase() {
-
-        var accessed = false;
-        var objBoolean = new Boolean();
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return this === objBoolean;
-        }
-
-        var newArr = [11].filter(callbackfn, objBoolean);
-
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-13.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-13.js
deleted file mode 100644
index 02d516ef7..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-13.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-13",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-13.js",
-
-    description: "Array.prototype.filter - Number Object can be used as thisArg",
-
-    test: function testcase() {
-
-        var accessed = false;
-        var objNumber = new Number();
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return this === objNumber;
-        }
-
-        var newArr = [11].filter(callbackfn, objNumber);
-
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-14.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-14.js
deleted file mode 100644
index b9565fa49..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-14.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-14",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-14.js",
-
-    description: "Array.prototype.filter - the Math object can be used as thisArg",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return this === Math;
-        }
-
-        var newArr = [11].filter(callbackfn, Math);
-
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-15.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-15.js
deleted file mode 100644
index c86ef78d5..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-15.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-15",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-15.js",
-
-    description: "Array.prototype.filter - Date Object can be used as thisArg",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        var objDate = new Date();
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return this === objDate;
-        }
-
-        var newArr = [11].filter(callbackfn, objDate);
-
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-16.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-16.js
deleted file mode 100644
index 73912fa2e..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-16.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-16",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-16.js",
-
-    description: "Array.prototype.filter - RegExp Object can be used as thisArg",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        var objRegExp = new RegExp();
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return this === objRegExp;
-        }
-
-        var newArr = [11].filter(callbackfn, objRegExp);
-
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-17.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-17.js
deleted file mode 100644
index 1c6a4f00f..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-17.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-17",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-17.js",
-
-    description: "Array.prototype.filter - the JSON object can be used as thisArg",
-
-    test: function testcase() {
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return this === JSON;
-        }
-
-        var newArr = [11].filter(callbackfn, JSON);
-
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-18.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-18.js
deleted file mode 100644
index 2cb650411..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-18.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-18",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-18.js",
-
-    description: "Array.prototype.filter - Error Object can be used as thisArg",
-
-    test: function testcase() {
-
-        var accessed = false;
-        var objError = new RangeError();
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return this === objError;
-        }
-
-        var newArr = [11].filter(callbackfn, objError);
-
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-19.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-19.js
deleted file mode 100644
index a50dedaf9..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-19.js
+++ /dev/null
@@ -1,53 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-19",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-19.js",
-
-    description: "Array.prototype.filter - the Arguments object can be used as thisArg",
-
-    test: function testcase() {
-
-        var accessed = false;
-        var arg;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return this === arg;
-        }
-
-        (function fun() {
-            arg = arguments;
-        }(1, 2, 3));
-
-        var newArr = [11].filter(callbackfn, arg);
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
-\ No newline at end of file
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-2.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-2.js
deleted file mode 100644
index 78656e771..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-2.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-5-2",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-2.js",
-
-description: "Array.prototype.filter - thisArg is Object",
-
-test: function testcase() {
-  var res = false;
-  var o = new Object();
-  o.res = true;
-  function callbackfn(val, idx, obj)
-  {
-    return this.res;
-  }
-
-  var srcArr = [1];
-  var resArr = srcArr.filter(callbackfn,o);
-  if( resArr.length === 1)
-    return true;
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-22.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-22.js
deleted file mode 100644
index 7cdca584c..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-22.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-22",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-22.js",
-
-    description: "Array.prototype.filter - boolean primitive can be used as thisArg",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return this.valueOf() === false;
-        }
-
-        var newArr = [11].filter(callbackfn, false);
-
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-23.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-23.js
deleted file mode 100644
index da7ea3615..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-23.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-23",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-23.js",
-
-    description: "Array.prototype.filter - number primitive can be used as thisArg",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return this.valueOf() === 101;
-        }
-
-        var newArr = [11].filter(callbackfn, 101);
-
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-24.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-24.js
deleted file mode 100644
index e0fc72a38..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-24.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-24",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-24.js",
-
-    description: "Array.prototype.filter - string primitive can be used as thisArg",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return this.valueOf() === "abc";
-        }
-
-        var newArr = [11].filter(callbackfn, "abc");
-
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-25.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-25.js
deleted file mode 100644
index e3bd18703..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-25.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-25",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-25.js",
-
-    description: "Array.prototype.filter - undefined can be used as thisArg",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return 'document' in this &&
-                'open' in this &&
-                'frames' in this;
-        }
-
-        var newArr = [11].filter(callbackfn, undefined);
-
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-26.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-26.js
deleted file mode 100644
index 992c2d765..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-26.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-26",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-26.js",
-
-    description: "Array.prototype.filter - null can be used as thisArg",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return 'document' in this &&
-                'open' in this &&
-                'frames' in this;
-        }
-
-        var newArr = [11].filter(callbackfn, null);
-
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-27.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-27.js
deleted file mode 100644
index 632087e36..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-27.js
+++ /dev/null
@@ -1,42 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-27",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-27.js",
-
-    description: "Array.prototype.filter - Array.isArray(arg) returns true when arg is the returned array",
-
-    test: function testcase() {
-
-        var newArr = [11].filter(function () { });
-
-        return Array.isArray(newArr);
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter) && fnExists(Array.isArray);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-28.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-28.js
deleted file mode 100644
index 7418846b1..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-28.js
+++ /dev/null
@@ -1,42 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-28",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-28.js",
-
-    description: "Array.prototype.filter - the returned array is instanceof Array",
-
-    test: function testcase() {
-
-        var newArr = [11].filter(function () { });
-
-        return newArr instanceof Array;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-29.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-29.js
deleted file mode 100644
index 2fbccb812..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-29.js
+++ /dev/null
@@ -1,42 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-29",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-29.js",
-
-    description: "Array.prototype.filter - returns an array whose length is 0",
-
-    test: function testcase() {
-
-        var newArr = [11].filter(function () { });
-
-        return newArr.length === 0;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-3.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-3.js
deleted file mode 100644
index af94bee1d..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-3.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-5-3",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-3.js",
-
-description: "Array.prototype.filter - thisArg is Array",
-
-test: function testcase() {
-  var res = false;
-  var a = new Array();
-  a.res = true;
-  function callbackfn(val, idx, obj)
-  {
-    return this.res;
-  }
-
-  var srcArr = [1];
-  var resArr = srcArr.filter(callbackfn,a);
-  if( resArr.length === 1)
-    return true;
-
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-4.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-4.js
deleted file mode 100644
index ccb775417..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-4.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-5-4",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-4.js",
-
-description: "Array.prototype.filter - thisArg is object from object template(prototype)",
-
-test: function testcase() {
-  var res = false;
-  function callbackfn(val, idx, obj)
-  {
-    return this.res;
-  }
-  
-  function foo(){}
-  foo.prototype.res = true;
-  var f = new foo();
-
-  var srcArr = [1];
-  var resArr = srcArr.filter(callbackfn,f);
-  if( resArr.length === 1)
-    return true;    
-
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-5.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-5.js
deleted file mode 100644
index 3c2641571..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-5.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-5-5",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-5.js",
-
-description: "Array.prototype.filter - thisArg is object from object template",
-
-test: function testcase() {
-  var res = false;
-  function callbackfn(val, idx, obj)
-  {
-    return this.res;
-  }
-
-  function foo(){}
-  var f = new foo();
-  f.res = true;
-  
-  var srcArr = [1];
-  var resArr = srcArr.filter(callbackfn,f);
-  if( resArr.length === 1)
-    return true;    
-
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-6.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-6.js
deleted file mode 100644
index 5b68bf3f9..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-6.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-5-6",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-6.js",
-
-description: "Array.prototype.filter - thisArg is function",
-
-test: function testcase() {
-  var res = false;
-  function callbackfn(val, idx, obj)
-  {
-    return this.res;
-  }
-
-  function foo(){}
-  foo.res = true;
-  
-  var srcArr = [1];
-  var resArr = srcArr.filter(callbackfn,foo);
-  if( resArr.length === 1)
-    return true;    
-
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-7.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-7.js
deleted file mode 100644
index 9e73946f6..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-7.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-7",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-7.js",
-
-    description: "Array.prototype.filter - built-in functions can be used as thisArg",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return this === eval;
-        }
-
-        var newArr = [11].filter(callbackfn, eval);
-
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-9.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-9.js
deleted file mode 100644
index 176a97924..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-9.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-5-9",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-5-9.js",
-
-    description: "Array.prototype.filter - Function Object can be used as thisArg",
-
-    test: function testcase() {
-
-        var accessed = false;
-        var objFunction = function () { };
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return this === objFunction;
-        }
-
-        var newArr = [11].filter(callbackfn, objFunction);
-
-        return newArr[0] === 11 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-1.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-1.js
deleted file mode 100644
index 92dbd2753..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-1.js
+++ /dev/null
@@ -1,42 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-6-1",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-1.js",
-
-description: "Array.prototype.filter returns an empty array if 'length' is 0 (empty array)",
-
-test: function testcase() {
-  function cb(){}
-  var a = [].filter(cb);
-  if (Array.isArray(a) &&
-      a.length === 0) {
-    return true;
-  }
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-2.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-2.js
deleted file mode 100644
index f6600fe28..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-2.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-6-2",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-2.js",
-
-description: "Array.prototype.filter returns an empty array if 'length' is 0 (subclassed Array, length overridden to null (type conversion))",
-
-test: function testcase() {
-  foo.prototype = new Array(1, 2, 3);
-  function foo() {}
-  var f = new foo();
-  f.length = null;
-  
-  function cb(){}
-  var a = f.filter(cb);
-  
-  if (Array.isArray(a) &&
-      a.length === 0) {
-    return true;
-  }
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-3.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-3.js
deleted file mode 100644
index 48348aedb..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-3.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-6-3",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-3.js",
-
-description: "Array.prototype.filter returns an empty array if 'length' is 0 (subclassed Array, length overridden to false (type conversion))",
-
-test: function testcase() {
-  foo.prototype = new Array(1, 2, 3);
-  function foo() {}
-  var f = new foo();
-  f.length = false;
-  
-  function cb(){}
-  var a = f.filter(cb);
-  
-  if (Array.isArray(a) &&
-      a.length === 0) {
-    return true;
-  }
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-4.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-4.js
deleted file mode 100644
index fd9c04904..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-4.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-6-4",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-4.js",
-
-description: "Array.prototype.filter returns an empty array if 'length' is 0 (subclassed Array, length overridden to 0 (type conversion))",
-
-test: function testcase() {
-  foo.prototype = new Array(1, 2, 3);
-  function foo() {}
-  var f = new foo();
-  f.length = 0;
-  
-  function cb(){}
-  var a = f.filter(cb);
-  
-  if (Array.isArray(a) &&
-      a.length === 0) {
-    return true;
-  }
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-5.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-5.js
deleted file mode 100644
index 360661f95..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-5.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-6-5",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-5.js",
-
-description: "Array.prototype.filter returns an empty array if 'length' is 0 (subclassed Array, length overridden to '0' (type conversion))",
-
-test: function testcase() {
-  foo.prototype = new Array(1, 2, 3);
-  function foo() {}
-  var f = new foo();
-  f.length = '0';
-  
-  function cb(){}
-  var a = f.filter(cb);
-  
-  if (Array.isArray(a) &&
-      a.length === 0) {
-    return true;
-  }
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-6.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-6.js
deleted file mode 100644
index 33a84520b..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-6.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-6-6",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-6.js",
-
-description: "Array.prototype.filter returns an empty array if 'length' is 0 (subclassed Array, length overridden with obj with valueOf)",
-
-test: function testcase() {
-  foo.prototype = new Array(1, 2, 3);
-  function foo() {}
-  var f = new foo();
-  
-  var o = { valueOf: function () { return 0;}};
-  f.length = o;
-  
-  function cb(){}
-  var a = f.filter(cb);
-  
-  if (Array.isArray(a) &&
-      a.length === 0) {
-    return true;
-  }
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-7.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-7.js
deleted file mode 100644
index 47c160c3a..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-7.js
+++ /dev/null
@@ -1,56 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-6-7",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-7.js",
-
-description: "Array.prototype.filter returns an empty array if 'length' is 0 (subclassed Array, length overridden with obj w/o valueOf (toString))",
-
-test: function testcase() {
-  foo.prototype = new Array(1, 2, 3);
-  function foo() {}
-  var f = new foo();
-  
-  var o = { toString: function () { return '0';}};
-  f.length = o;
-  
-  // objects inherit the default valueOf method of the Object object;
-  // that simply returns the itself. Since the default valueOf() method
-  // does not return a primitive value, ES next tries to convert the object
-  // to a number by calling its toString() method and converting the
-  // resulting string to a number.
-
-  function cb(){}
-  var a = f.filter(cb);
-  
-  if (Array.isArray(a) &&
-      a.length === 0) {
-    return true;
-  }
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-8.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-8.js
deleted file mode 100644
index ca77c27f0..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-8.js
+++ /dev/null
@@ -1,63 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-6-8",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-6-8.js",
-
-description: "Array.prototype.filter returns an empty array if 'length' is 0 (subclassed Array, length overridden with []",
-
-test: function testcase() {
-  foo.prototype = new Array(1, 2, 3);
-  function foo() {}
-  var f = new foo();
-  
-  f.length = [];
-  
-  // objects inherit the default valueOf method of the Object object;
-  // that simply returns the itself. Since the default valueOf() method
-  // does not return a primitive value, ES next tries to convert the object
-  // to a number by calling its toString() method and converting the
-  // resulting string to a number.
-  //
-  // The toString( ) method on Array converts the array elements to strings,
-  // then returns the result of concatenating these strings, with commas in
-  // between. An array with no elements converts to the empty string, which
-  // converts to the number 0. If an array has a single element that is a
-  // number n, the array converts to a string representation of n, which is
-  // then converted back to n itself. If an array contains more than one element,
-  // or if its one element is not a number, the array converts to NaN.
-
-  function cb(){}
-  var a = f.filter(cb);
-  
-  if (Array.isArray(a) &&
-      a.length === 0) {
-    return true;
-  }
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-1.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-1.js
deleted file mode 100644
index 2daa10219..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-1.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-9-1",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-1.js",
-
-description: "Array.prototype.filter doesn't consider new elements added to array after it is called",
-
-test: function testcase() { 
- 
-  function callbackfn(val, idx, obj)
-  {
-    srcArr[2] = 3;    
-    srcArr[5] = 6;
-    return true;
-  }
-
-  var srcArr = [1,2,,4,5];
-  var resArr = srcArr.filter(callbackfn);
-  if(resArr.length === 5)
-      return true;  
-  
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-2.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-2.js
deleted file mode 100644
index de334c0f5..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-2.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-9-2",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-2.js",
-
-description: "Array.prototype.filter considers new value of elements in array after it is called",
-
-test: function testcase() { 
- 
-  function callbackfn(val, idx, obj)
-  {    
-    srcArr[2] = -1;
-    srcArr[4] = -1;
-    if(val > 0)
-      return true;
-    else
-      return false;
-  }
-
-  var srcArr = [1,2,3,4,5];
-  var resArr = srcArr.filter(callbackfn);
-  if(resArr.length === 3 && resArr[0] === 1 && resArr[2] === 4)
-      return true;  
-  
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-3.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-3.js
deleted file mode 100644
index 052ed516c..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-3.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-9-3",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-3.js",
-
-description: "Array.prototype.filter doesn't visit deleted elements in array after the call",
-
-test: function testcase() { 
- 
-  function callbackfn(val, idx, obj)
-  {
-    delete srcArr[2];
-    delete srcArr[4];
-    if(val > 0)
-      return true;
-    else
-      return false;
-   }
-
-  var srcArr = [1,2,3,4,5];
-  var resArr = srcArr.filter(callbackfn);
-  if(resArr.length === 3 && resArr[0] === 1 && resArr[2] === 4 )    // two elements deleted
-      return true;  
-  
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-4.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-4.js
deleted file mode 100644
index a737145d9..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-4.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-9-4",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-4.js",
-
-description: "Array.prototype.filter doesn't visit deleted elements when Array.length is decreased",
-
-test: function testcase() { 
- 
-  function callbackfn(val, idx, obj)
-  {
-    srcArr.length = 2;
-    return true;
-  }
-
-  var srcArr = [1,2,3,4,6];
-  var resArr = srcArr.filter(callbackfn);
-  if(resArr.length === 2 )
-      return true;  
-  
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-5.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-5.js
deleted file mode 100644
index 352f9c876..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-5.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-9-5",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-5.js",
-
-description: "Array.prototype.filter doesn't consider newly added elements in sparse array",
-
-test: function testcase() { 
- 
-  function callbackfn(val, idx, obj)
-  {
-    srcArr[1000] = 3;
-    return true;
-  }
-
-  var srcArr = new Array(10);
-  srcArr[1] = 1;
-  srcArr[2] = 2;
-  var resArr = srcArr.filter(callbackfn);
-  if( resArr.length === 2)    
-      return true;  
-  
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-6.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-6.js
deleted file mode 100644
index c321d6829..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-6.js
+++ /dev/null
@@ -1,53 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-9-6",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-6.js",
-
-description: "Array.prototype.filter visits deleted element in array after the call when same index is also present in prototype",
-
-test: function testcase() { 
- 
-  function callbackfn(val, idx, obj)
-  {
-    delete srcArr[2];
-    delete srcArr[4];
-    if(val > 0)
-      return true;
-    else
-      return false;
-   }
-
-  Array.prototype[4] = 5;
-  var srcArr = [1,2,3,4,5];
-  var resArr = srcArr.filter(callbackfn);
-  delete Array.prototype[4];
-  if(resArr.length === 4 && resArr[0] === 1 && resArr[3] == 5)    // only one element deleted
-      return true;  
-  
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-7.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-7.js
deleted file mode 100644
index 7da0b14f5..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-7.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-7",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-7.js",
-
-    description: "Array.prototype.filter - no observable effects occur if len is 0",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return val > 10;
-        }
-
-        var obj = { 0: 11, 1: 12, length: 0 };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return accessed === false && obj.length === 0 && newArr.length === 0;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-b-1.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-b-1.js
deleted file mode 100644
index affc69237..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-b-1.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-9-b-1",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-b-1.js",
-
-description: "Array.prototype.filter - callbackfn not called for indexes never been assigned values",
-
-test: function testcase() { 
- 
-  var callCnt = 0;
-  function callbackfn(val, idx, obj)
-  {
-    callCnt++;
-    return false;
-  }
-
-  var srcArr = new Array(10);
-  srcArr[1] = undefined; //explicitly assigning a value
-  var resArr = srcArr.filter(callbackfn);
-  if( resArr.length === 0 && callCnt === 1)
-      return true;    
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-b-2.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-b-2.js
deleted file mode 100644
index 425ad6eee..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-b-2.js
+++ /dev/null
@@ -1,55 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-b-2",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-b-2.js",
-
-    description: "Array.prototype.filter - added properties in step 2 are visible here",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = {};
-
-        Object.defineProperty(obj, "length", {
-            get: function () {
-                obj[2] = "length";
-                return 3;
-            },
-            configurable: true
-        });
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === "length";
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter) && fnExists(Object.defineProperty);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-b-3.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-b-3.js
deleted file mode 100644
index 1d6c46144..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-b-3.js
+++ /dev/null
@@ -1,54 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-b-3",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-b-3.js",
-
-    description: "Array.prototype.filter - deleted properties in step 2 are visible here",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-        var obj = { 2: 6.99, 8: 19 };
-
-        Object.defineProperty(obj, "length", {
-            get: function () {
-                delete obj[2];
-                return 10;
-            },
-            configurable: true
-        });
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] !== 6.99;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter) && fnExists(Object.defineProperty);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-1.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-1.js
deleted file mode 100644
index c8ee028f4..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-1.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-i-1",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-1.js",
-
-    description: "Array.prototype.filter - element to be retrieved is own data property on an Array-like object",
-
-    test: function testcase() {
-
-        var kValue = {};
-        function callbackfn(val, idx, obj) {
-            return (idx === 5) && (val === kValue);
-        }
-
-        var obj = { 5: kValue, length: 100 };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === kValue;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-2.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-2.js
deleted file mode 100644
index a7226bd08..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-2.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-i-2",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-2.js",
-
-    description: "Array.prototype.filter - element to be retrieved is own data property on an Array",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            if (idx === 0) {
-                return val === 11;
-            }
-        }
-
-        var newArr = [11].filter(callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-25.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-25.js
deleted file mode 100644
index e7e7f4815..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-25.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-i-25",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-25.js",
-
-    description: "Array.prototype.filter - This object is the Arguments object which implements its own property get method (number of arguments is less than number of parameters)",
-
-    test: function testcase() {
-        function callbackfn(val, idx, obj) {
-            return val === 11 && idx === 0;
-        }
-
-        var func = function (a, b) {
-            return Array.prototype.filter.call(arguments, callbackfn);
-        };
-
-        var newArr = func(11);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-26.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-26.js
deleted file mode 100644
index eb4fdf6f0..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-26.js
+++ /dev/null
@@ -1,56 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-i-26",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-26.js",
-
-    description: "Array.prototype.filter - This object is the Arguments object which implements its own property get method (number of arguments equals number of parameters)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            if (idx === 0) {
-                return val === 11;
-            } else if (idx === 1) {
-                return val === 9;
-            } else {
-                return false;
-            }
-        }
-
-        var func = function (a, b) {
-            return Array.prototype.filter.call(arguments, callbackfn);
-        };
-        var newArr = func(11, 9);
-
-        return newArr.length === 2 && newArr[0] === 11 &&
-            newArr[1] === 9;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-27.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-27.js
deleted file mode 100644
index ae67db6e0..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-27.js
+++ /dev/null
@@ -1,58 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-i-27",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-27.js",
-
-    description: "Array.prototype.filter - This object is the Arguments object which implements its own property get method (number of arguments is greater than number of parameters)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            if (idx === 0) {
-                return val === 11;
-            } else if (idx === 1) {
-                return val === 12;
-            } else if (idx === 2) {
-                return val === 9;
-            } else {
-                return false;
-            }
-        }
-
-        var func = function (a, b) {
-            return Array.prototype.filter.call(arguments, callbackfn);
-        };
-        var newArr = func(11, 12, 9);
-
-        return newArr.length === 3 && newArr[0] === 11 &&
-            newArr[1] === 12 && newArr[2] === 9;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-3.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-3.js
deleted file mode 100644
index a81bb26f2..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-3.js
+++ /dev/null
@@ -1,55 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-i-3",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-3.js",
-
-    description: "Array.prototype.filter - element to be retrieved is own data property that overrides an inherited data property on an Array-like object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return (idx === 5) && (val === "abc");
-        }
-
-        var proto = { 0: 11, 5: 100 };
-
-        var Con = function () { };
-        Con.prototype = proto;
-
-        var child = new Con();
-        child[5] = "abc";
-        child.length = 10;
-
-        var newArr = Array.prototype.filter.call(child, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === "abc";
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-4.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-4.js
deleted file mode 100644
index 0d28d5499..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-4.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-i-4",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-4.js",
-
-    description: "Array.prototype.filter - element to be retrieved is own data property that overrides an inherited data property on an Array",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return (idx === 0) && (val === 12);
-        }
-
-        try {
-            Array.prototype[0] = 11;
-            var newArr = [12].filter(callbackfn);
-
-            return newArr.length === 1 && newArr[0] === 12;
-        } finally {
-            delete Array.prototype[0];
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-7.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-7.js
deleted file mode 100644
index 1557db561..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-7.js
+++ /dev/null
@@ -1,56 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-i-7",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-7.js",
-
-    description: "Array.prototype.filter - element to be retrieved is inherited data property on an Array-like object",
-
-    test: function testcase() {
-
-        var kValue = 'abc';
-
-        function callbackfn(val, idx, obj) {
-            return (idx === 5) && (val === kValue);
-        }
-
-        var proto = { 5: kValue };
-
-        var Con = function () { };
-        Con.prototype = proto;
-
-        var child = new Con();
-        child.length = 10;
-
-        var newArr = Array.prototype.filter.call(child, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === kValue;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-8.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-8.js
deleted file mode 100644
index 3da285739..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-8.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-i-8",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-8.js",
-
-    description: "Array.prototype.filter - element to be retrieved is inherited data property on an Array",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return (idx === 1) && (val === 13);
-        }
-
-        try {
-            Array.prototype[1] = 13;
-            var newArr = [, , , ].filter(callbackfn);
-
-            return newArr.length === 1 && newArr[0] === 13;
-        } finally {
-            delete Array.prototype[1];
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter) && ![, 1].hasOwnProperty(0);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-1.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-1.js
deleted file mode 100644
index 8760cc737..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-1.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-9-c-ii-1",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-1.js",
-
-description: "Array.prototype.filter - callbackfn called with correct parameters",
-
-test: function testcase() { 
- 
-  var bPar = true;
-  var bCalled = false;
-  function callbackfn(val, idx, obj)
-  {
-    bCalled = true;
-    if(obj[idx] !== val)
-      bPar = false;
-  }
-
-  var srcArr = [0,1,true,null,new Object(),"five"];
-  srcArr[999999] = -6.6;
-  var resArr = srcArr.filter(callbackfn);
-  
-  if(bCalled === true && bPar === true)
-    return true;
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-10.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-10.js
deleted file mode 100644
index 9e9d1896d..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-10.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-10",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-10.js",
-
-    description: "Array.prototype.filter - callbackfn is called with 1 formal parameter",
-
-    test: function testcase() {
-
-        function callbackfn(val) {
-            return val > 10;
-        }
-        var newArr = [12].filter(callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 12;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-11.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-11.js
deleted file mode 100644
index 2ce09d5c0..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-11.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-11",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-11.js",
-
-    description: "Array.prototype.filter - callbackfn is called with 2 formal parameter",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx) {
-            return val > 10 && arguments[2][idx] === val;
-        }
-        var newArr = [11].filter(callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-12.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-12.js
deleted file mode 100644
index 9887e4b93..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-12.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-12",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-12.js",
-
-    description: "Array.prototype.filter - callbackfn is called with 3 formal parameter",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return val > 10 && obj[idx] === val;
-        }
-        var newArr = [11].filter(callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-13.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-13.js
deleted file mode 100644
index b6e05821b..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-13.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-13",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-13.js",
-
-    description: "Array.prototype.filter - callbackfn that uses arguments object to get parameter value",
-
-    test: function testcase() {
-
-        function callbackfn() {
-            return arguments[2][arguments[1]] === arguments[0];
-        }
-        var newArr = [11].filter(callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-14.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-14.js
deleted file mode 100644
index c1673ba99..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-14.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-14",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-14.js",
-
-    description: "Array.prototype.filter - 'this' of 'callbackfn' is an object when 'T' is not an object('T' is undefined)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, o) {
-            return 'document' in this &&
-                'open' in this &&
-                'frames' in this;
-        }
-
-        var obj = { 0: 11, length: 1 };
-        var newArr = Array.prototype.filter.call(obj, callbackfn, undefined);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-15.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-15.js
deleted file mode 100644
index f1e868969..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-15.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-15",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-15.js",
-
-    description: "Array.prototype.filter - 'this' of 'callbackfn' is an object when 'T' is not an object(T is null)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, o) {
-            return 'document' in this &&
-                'open' in this &&
-                'frames' in this;
-        }
-
-        var newArr = [11].filter(callbackfn, null);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-16.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-16.js
deleted file mode 100644
index 40e4f1ee8..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-16.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-16",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-16.js",
-
-    description: "Array.prototype.filter - 'this' of 'callbackfn' is a Boolean object when T is not an object (T is a boolean)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return this.valueOf() === false;
-        }
-
-        var obj = { 0: 11, length: 2 };
-        var newArr = Array.prototype.filter.call(obj, callbackfn, false);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-17.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-17.js
deleted file mode 100644
index 18d3289cd..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-17.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-17",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-17.js",
-
-    description: "Array.prototype.filter -'this' of 'callbackfn' is a Number object when T is not an object (T is a number)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, o) {
-            return 5 === this.valueOf();
-        }
-
-        var obj = { 0: 11, length: 2 };
-        var newArr = Array.prototype.filter.call(obj, callbackfn, 5);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-18.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-18.js
deleted file mode 100644
index cd8794c4b..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-18.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-18",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-18.js",
-
-    description: "Array.prototype.filter - 'this' of 'callbackfn' is an String object when T is not an object (T is a string)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return 'hello' === this.valueOf();
-        }
-
-        var obj = { 0: 11, length: 2 };
-        var newArr = Array.prototype.filter.call(obj, callbackfn, "hello");
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-19.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-19.js
deleted file mode 100644
index 1af74705b..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-19.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-19",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-19.js",
-
-    description: "Array.prototype.filter - non-indexed properties are not called",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return val === 8;
-        }
-
-        var obj = { 0: 11, non_index_property: 8, 2: 5, length: 20 };
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 0 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-2.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-2.js
deleted file mode 100644
index cc4894f6e..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-2.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-9-c-ii-2",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-2.js",
-
-description: "Array.prototype.filter - callbackfn takes 3 arguments",
-
-test: function testcase() { 
- 
-  var parCnt = 3;
-  var bCalled = false
-  function callbackfn(val, idx, obj)
-  { 
-    bCalled = true;
-    if(arguments.length !== 3)
-      parCnt = arguments.length;   //verify if callbackfn was called with 3 parameters
-  }
-
-  var srcArr = [0,1,2,3,4,5,6,7,8,9];
-  var resArr = srcArr.filter(callbackfn);
-  if(bCalled === true && parCnt === 3)
-    return true;
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-20.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-20.js
deleted file mode 100644
index 2e4a4827d..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-20.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-20",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-20.js",
-
-    description: "Array.prototype.filter - callbackfn called with correct parameters (thisArg is correct)",
-
-    test: function testcase() {
-
-        var thisArg = { threshold: 10 };
-
-        function callbackfn(val, idx, obj) {
-            return this === thisArg;
-        }
-
-        var obj = { 0: 11, length: 1 };
-        var newArr = Array.prototype.filter.call(obj, callbackfn, thisArg);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-21.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-21.js
deleted file mode 100644
index 4b6c2d93e..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-21.js
+++ /dev/null
@@ -1,55 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-21",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-21.js",
-
-    description: "Array.prototype.filter - callbackfn called with correct parameters (kValue is correct)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            if (idx === 0) {
-                return val === 11;
-            }
-
-            if (idx === 1) {
-                return val === 12;
-            }
-
-            return false;
-        }
-
-        var obj = { 0: 11, 1: 12, length: 2 };
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 2 && newArr[0] === 11 && newArr[1] === 12;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-22.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-22.js
deleted file mode 100644
index 1b092c987..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-22.js
+++ /dev/null
@@ -1,55 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-22",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-22.js",
-
-    description: "Array.prototype.filter - callbackfn called with correct parameters (the index k is correct)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            if (val === 11) {
-                return idx === 0;
-            }
-
-            if (val === 12) {
-                return idx === 1;
-            }
-
-            return false;
-        }
-
-        var obj = { 0: 11, 1: 12, length: 2 };
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 2 && newArr[0] === 11 && newArr[1] === 12;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-23.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-23.js
deleted file mode 100644
index 75aaed665..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-23.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-23",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-23.js",
-
-    description: "Array.prototype.filter - callbackfn called with correct parameters (this object O is correct)",
-
-    test: function testcase() {
-
-        var obj = { 0: 11, length: 2 };
-
-        function callbackfn(val, idx, o) {
-            return obj === o;
-        }
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-4.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-4.js
deleted file mode 100644
index 2a51e13dd..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-4.js
+++ /dev/null
@@ -1,54 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-4",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-4.js",
-
-    description: "Array.prototype.filter - k values are passed in ascending numeric order",
-
-    test: function testcase() {
-
-        var arr = [0, 1, 2, 3, 4, 5];
-        var lastIdx = 0;
-        var called = 0;
-        function callbackfn(val, idx, o) {
-            called++;
-            if (lastIdx !== idx) {
-                return false;
-            } else {
-                lastIdx++;
-                return true;
-            }
-        }
-        var newArr = arr.filter(callbackfn);
-
-        return newArr.length === called;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-5.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-5.js
deleted file mode 100644
index 87d589cae..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-5.js
+++ /dev/null
@@ -1,60 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-5",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-5.js",
-
-    description: "Array.prototype.filter - k values are accessed during each iteration and not prior to starting the loop on an Array",
-
-    test: function testcase() {
-
-        var kIndex = [];
-        var called = 0;
-
-        //By below way, we could verify that k would be setted as 0, 1, ..., length - 1 in order, and each value will be setted one time.
-        function callbackfn(val, idx, obj) {
-            called++;
-            //Each position should be visited one time, which means k is accessed one time during iterations.
-            if (kIndex[idx] === undefined) {
-                //when current position is visited, its previous index should has been visited.
-                if (idx !== 0 && kIndex[idx - 1] === undefined) {
-                    return true;
-                }
-                kIndex[idx] = 1;
-                return false;
-            } else {
-                return true;
-            }
-        }
-        var newArr = [11, 12, 13, 14].filter(callbackfn, undefined);
-
-        return newArr.length === 0 && called === 4;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-6.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-6.js
deleted file mode 100644
index f458cdc96..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-6.js
+++ /dev/null
@@ -1,52 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-6",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-6.js",
-
-    description: "Array.prototype.filter - arguments to callbackfn are self consistent",
-
-    test: function testcase() {
-
-        var obj = { 0: 11, length: 1 };
-        var thisArg = {};
-
-        function callbackfn() {
-            return this === thisArg &&
-                arguments[0] === 11 &&
-                arguments[1] === 0 &&
-                arguments[2] === obj;
-        }
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn, thisArg);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-7.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-7.js
deleted file mode 100644
index fda6e4e76..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-7.js
+++ /dev/null
@@ -1,57 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-7",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-7.js",
-
-    description: "Array.prototype.filter - unhandled exceptions happened in callbackfn terminate iteration",
-
-    test: function testcase() {
-
-        var called = 0;
-
-        function callbackfn(val, idx, obj) {
-            called++;
-            if (called === 1) {
-                throw new Error("Exception occurred in callbackfn");
-            }
-            return true;
-        }
-
-        var obj = { 0: 11, 4: 10, 10: 8, length: 20 };
-
-        try {
-            Array.prototype.filter.call(obj, callbackfn);
-            return false;
-        } catch (ex) {
-            return 1 === called && ex instanceof Error;
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-8.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-8.js
deleted file mode 100644
index 1b5ec8af7..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-8.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-8",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-8.js",
-
-    description: "Array.prototype.filter - element changed by callbackfn on previous iterations is observed",
-
-    test: function testcase() {
-
-        var obj = { 0: 11, 1: 12, length: 2 };
-
-        function callbackfn(val, idx, o) {
-            if (idx === 0) {
-                obj[idx + 1] = 8;
-            }
-            return val > 10;
-        }
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-9.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-9.js
deleted file mode 100644
index d28bf7e6c..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-9.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-ii-9",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-ii-9.js",
-
-    description: "Array.prototype.filter - callbackfn is called with 0 formal parameter",
-
-    test: function testcase() {
-
-        function callbackfn() {
-            return true;
-        }
-        var newArr = [11].filter(callbackfn);
-
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-1.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-1.js
deleted file mode 100644
index 34bc96084..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-1.js
+++ /dev/null
@@ -1,46 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-1-1",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-1.js",
-
-    description: "Array.prototype.filter - value of returned array element equals to 'kValue'",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = { 0: 11, 1: 9, length: 2 };
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        return newArr[0] === obj[0] && newArr[1] === obj[1];
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-2.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-2.js
deleted file mode 100644
index a7657c49e..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-2.js
+++ /dev/null
@@ -1,52 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-1-2",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-2.js",
-
-    description: "Array.prototype.filter - value of returned array element can be overwritten",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = { 0: 11, 1: 9, length: 2 };
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        try {
-            var tempVal = newArr[1];
-            newArr[1] += 1;
-            return newArr[1] !== tempVal;
-        } catch (ex) {
-            return false;
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-3.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-3.js
deleted file mode 100644
index bdf177b19..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-3.js
+++ /dev/null
@@ -1,56 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-1-3",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-3.js",
-
-    description: "Array.prototype.filter - value of returned array element can be enumerated",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = { 0: 11, length: 2 };
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        var prop;
-        var enumerable = false;
-        for (prop in newArr) {
-            if (newArr.hasOwnProperty(prop)) {
-                if (prop === "0") {
-                    enumerable = true;
-                }
-            }
-        }
-
-        return enumerable;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-4.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-4.js
deleted file mode 100644
index f6b518798..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-4.js
+++ /dev/null
@@ -1,52 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-1-4",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-4.js",
-
-    description: "Array.prototype.filter - value of returned array element can be changed or deleted",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = { 0: 11, 1: 9, length: 2 };
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-
-        try {
-            var tempVal = newArr[1];
-            delete newArr[1];
-            return tempVal !== undefined && newArr[1] === undefined;
-        } catch (ex) {
-            return false;
-        }
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-5.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-5.js
deleted file mode 100644
index 5dfedd9ce..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-5.js
+++ /dev/null
@@ -1,54 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-1-5",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-5.js",
-
-    description: "Array.prototype.filter - values of 'to' are passed in acending numeric order",
-
-    test: function testcase() {
-
-        var arr = [0, 1, 2, 3, 4];
-        var lastToIdx = 0;
-        var called = 0;
-        function callbackfn(val, idx, obj) {
-            called++;
-            if (lastToIdx !== idx) {
-                return false;
-            } else {
-                lastToIdx++;
-                return true;
-            }
-        }
-        var newArr = arr.filter(callbackfn);
-
-        return newArr.length === 5 && called === 5;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-6.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-6.js
deleted file mode 100644
index b25055889..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-6.js
+++ /dev/null
@@ -1,60 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-1-6",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1-6.js",
-
-    description: "Array.prototype.filter - values of 'to' are accessed during each iteration when 'selected' is converted to true and not prior to starting the loop",
-
-    test: function testcase() {
-
-        var toIndex = [];
-        var called = 0;
-
-        //By below way, we could verify that 'to' would be setted as 0, 1, ..., length - 1 in order, and each value will be setted one time.
-        function callbackfn(val, idx, obj) {
-            called++;
-            //Each position should be visited one time, which means 'to' is accessed one time during iterations.
-            if (toIndex[idx] === undefined) {
-                //when current position is visited, its previous index should has been visited.
-                if (idx !== 0 && toIndex[idx - 1] === undefined) {
-                    return false;
-                }
-                toIndex[idx] = 1;
-                return true;
-            } else {
-                return false;
-            }
-        }
-        var newArr = [11, 12, 13, 14].filter(callbackfn, undefined);
-
-        return newArr.length === 4 && called === 4;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1.js
deleted file mode 100644
index 19b4e259f..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1.js
+++ /dev/null
@@ -1,53 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
-
-
-ES5Harness.registerTest( {
-id: "15.4.4.20-9-c-iii-1",
-
-path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-1.js",
-
-description: "Array.prototype.filter - getOwnPropertyDescriptor(all true) of returned array element",
-
-test: function testcase() {
-  
-  function callbackfn(val, idx, obj){
-    if(val % 2)
-      return true; 
-    else
-      return false;
-  }
-  var srcArr = [0,1,2,3,4];
-  var resArr = srcArr.filter(callbackfn);
-  if (resArr.length > 0){
-     var desc = Object.getOwnPropertyDescriptor(resArr, 1) 
-     if(desc.value === 3 &&        //srcArr[1] = true
-       desc.writable === true &&
-       desc.enumerable === true &&
-       desc.configurable === true){
-         return true;
-    }
-  }
- },
-
-precondition: function prereq() {
-  return fnExists(Array.prototype.filter);
- }
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-10.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-10.js
deleted file mode 100644
index 050d5b839..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-10.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-10",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-10.js",
-
-    description: "Array.prototype.filter return value of callbackfn is a number (value is negative number)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return -5;
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-11.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-11.js
deleted file mode 100644
index 81bc08c3f..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-11.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-11",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-11.js",
-
-    description: "Array.prototype.filter return value of callbackfn is a number (value is Infinity)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return Infinity;
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-12.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-12.js
deleted file mode 100644
index ff2295c8d..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-12.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-12",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-12.js",
-
-    description: "Array.prototype.filter return value of callbackfn is a number (value is -Infinity)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return -Infinity;
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-13.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-13.js
deleted file mode 100644
index 3ced0ecc2..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-13.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-13",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-13.js",
-
-    description: "Array.prototype.filter return value of callbackfn is a number (value is NaN)",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return NaN;
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 0 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-14.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-14.js
deleted file mode 100644
index 71558a5aa..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-14.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-14",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-14.js",
-
-    description: "Array.prototype.filter return value of callbackfn is an empty string",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return "";
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 0 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-15.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-15.js
deleted file mode 100644
index 0740ed968..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-15.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-15",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-15.js",
-
-    description: "Array.prototype.filter return value of callbackfn is a non-empty string",
-
-    test: function testcase() {
-    
-        function callbackfn(val, idx, obj) {
-            return "non-empty string";
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-16.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-16.js
deleted file mode 100644
index fe4891d48..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-16.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-16",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-16.js",
-
-    description: "Array.prototype.filter return value of callbackfn is a Function object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return function () { };
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-17.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-17.js
deleted file mode 100644
index d4c2f6a93..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-17.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-17",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-17.js",
-
-    description: "Array.prototype.filter return value of callbackfn is an Array object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return new Array(10);
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-18.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-18.js
deleted file mode 100644
index 80ad3fcf1..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-18.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-18",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-18.js",
-
-    description: "Array.prototype.filter return value of callbackfn is a String object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return new String();
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-19.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-19.js
deleted file mode 100644
index 3f05d206e..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-19.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-19",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-19.js",
-
-    description: "Array.prototype.filter return value of callbackfn is a Boolean object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return new Boolean();
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-2.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-2.js
deleted file mode 100644
index 56ed867a5..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-2.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-2",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-2.js",
-
-    description: "Array.prototype.filter - return value of callbackfn is undefined",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, o) {
-            accessed = true;
-            return undefined;
-        }
-
-        var obj = { 0: 11, length: 1 };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-        return  newArr.length === 0 && accessed;
-    },
-     
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-20.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-20.js
deleted file mode 100644
index 3219c2d85..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-20.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-20",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-20.js",
-
-    description: "Array.prototype.filter - return value of callbackfn is a Number object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return new Number();
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-21.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-21.js
deleted file mode 100644
index 14e437593..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-21.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-21",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-21.js",
-
-    description: "Array.prototype.filter - return value of callbackfn is the Math object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return Math;
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-22.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-22.js
deleted file mode 100644
index 869df1d0f..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-22.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-22",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-22.js",
-
-    description: "Array.prototype.filter - return value of callbackfn is a Date object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return new Date();
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-23.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-23.js
deleted file mode 100644
index dc26b0c59..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-23.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-23",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-23.js",
-
-    description: "Array.prototype.filter - return value of callbackfn is a RegExp object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return new RegExp();
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-24.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-24.js
deleted file mode 100644
index 6b118a500..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-24.js
+++ /dev/null
@@ -1,46 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-24",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-24.js",
-
-    description: "Array.prototype.filter - return value of callbackfn is the JSON object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return JSON;
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-25.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-25.js
deleted file mode 100644
index 21435b586..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-25.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-25",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-25.js",
-
-    description: "Array.prototype.filter - return value of callbackfn is an Error object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return new EvalError();
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-26.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-26.js
deleted file mode 100644
index cb177b099..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-26.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-26",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-26.js",
-
-    description: "Array.prototype.filter - return value of callbackfn is the Arguments object",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return arguments;
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-29.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-29.js
deleted file mode 100644
index 2d93a4171..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-29.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-29",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-29.js",
-
-    description: "Array.prototype.filter - false prevents element added to output Array",
-
-    test: function testcase() {
-
-        var called = 0;
-
-        function callbackfn(val, idx, obj) {
-            called++;
-            return val > 10;
-        }
-
-        var obj = { 0: 11, 1: 8, length: 20 };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-        return newArr.length === 1 && newArr[0] !== 8 && called === 2;
-
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-3.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-3.js
deleted file mode 100644
index 147b353e8..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-3.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-3",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-3.js",
-
-    description: "Array.prototype.filter - return value of callbackfn is null",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return null;
-        }
-
-        var obj = { 0: 11, length: 1 };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-        return newArr.length === 0 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-30.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-30.js
deleted file mode 100644
index d42514691..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-30.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-30",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-30.js",
-
-    description: "Array.prototype.filter - return value (new Boolean(false)) of callbackfn is treated as true value",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return new Boolean(false);
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-4.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-4.js
deleted file mode 100644
index 2d481291a..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-4.js
+++ /dev/null
@@ -1,50 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-4",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-4.js",
-
-    description: "Array.prototype.filter - return value of callbackfn is a boolean (value is false)",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return false;
-        }
-
-        var obj = { 0: 11, length: 1 };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-        return newArr.length === 0 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-5.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-5.js
deleted file mode 100644
index 354e391d5..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-5.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-5",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-5.js",
-
-    description: "Array.prototype.filter - return value of callbackfn is a boolean (value is true)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return true;
-        }
-
-        var obj = { 0: 11, length: 1 };
-
-        var newArr = Array.prototype.filter.call(obj, callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-6.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-6.js
deleted file mode 100644
index f356af700..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-6.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-6",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-6.js",
-
-    description: "Array.prototype.filter - return value of callbackfn is a number (value is 0)",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return 0;
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 0 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-7.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-7.js
deleted file mode 100644
index 897699ee5..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-7.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-7",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-7.js",
-
-    description: "Array.prototype.filter - return value of callbackfn is a number (value is +0)",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return +0;
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 0 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-8.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-8.js
deleted file mode 100644
index be3b51ff8..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-8.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-8",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-8.js",
-
-    description: "Array.prototype.filter - return value of callbackfn is a nunmber (value is -0)",
-
-    test: function testcase() {
-
-        var accessed = false;
-
-        function callbackfn(val, idx, obj) {
-            accessed = true;
-            return -0;
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 0 && accessed;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-9.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-9.js
deleted file mode 100644
index 94df6be2a..000000000
--- a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-9.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/// Copyright (c) 2009 Microsoft Corporation 
-/// 
-/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
-/// that the following conditions are met: 
-///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
-///      the following disclaimer. 
-///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
-///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
-///    * Neither the name of Microsoft nor the names of its contributors may be used to
-///      endorse or promote products derived from this software without specific prior written permission.
-/// 
-/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-
-ES5Harness.registerTest({
-
-    id: "15.4.4.20-9-c-iii-9",
-
-    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-iii-9.js",
-
-    description: "Array.prototype.filter - return value of callbackfn is a number (value is positive number)",
-
-    test: function testcase() {
-
-        function callbackfn(val, idx, obj) {
-            return 5;
-        }
-
-        var newArr = [11].filter(callbackfn);
-        return newArr.length === 1 && newArr[0] === 11;
-    },
-
-    precondition: function prereq() {
-        return fnExists(Array.prototype.filter);
-    }
-
-});
author	David Fugate <dfugate@microsoft.com>	2011-02-02 09:57:23 -0800
committer	David Fugate <dfugate@microsoft.com>	2011-02-02 09:57:23 -0800
commit	daf5af6174581ee61a603fb24b067622dddea4a3 (patch)
tree	6738fd7aac306a28a9fffb1f41d8bb66d266b2e0 /test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.20
parent	fa6d5ee55897b5d4f4431fad55f0e7cf93b920b1 (diff)
download	test262-daf5af6174581ee61a603fb24b067622dddea4a3.tar.gz