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diff --git a/deps/v8/test/mjsunit/number-tostring.js b/deps/v8/test/mjsunit/number-tostring.js
new file mode 100644
index 0000000000..04d027ff57
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+++ b/deps/v8/test/mjsunit/number-tostring.js
@@ -0,0 +1,338 @@
+// Copyright 2008 the V8 project authors. All rights reserved.
+// 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 Google Inc. 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.
+
+// ----------------------------------------------------------------------
+// toString
+assertEquals("NaN", (NaN).toString());
+assertEquals("Infinity", (1/0).toString());
+assertEquals("-Infinity", (-1/0).toString());
+assertEquals("0", (0).toString());
+assertEquals("9", (9).toString());
+assertEquals("90", (90).toString());
+assertEquals("90.12", (90.12).toString());
+assertEquals("0.1", (0.1).toString());
+assertEquals("0.01", (0.01).toString());
+assertEquals("0.0123", (0.0123).toString());
+assertEquals("111111111111111110000", (111111111111111111111).toString());
+assertEquals("1.1111111111111111e+21", (1111111111111111111111).toString());
+assertEquals("1.1111111111111111e+22", (11111111111111111111111).toString());
+assertEquals("0.00001", (0.00001).toString());
+assertEquals("0.000001", (0.000001).toString());
+assertEquals("1e-7", (0.0000001).toString());
+assertEquals("1.2e-7", (0.00000012).toString());
+assertEquals("1.23e-7", (0.000000123).toString());
+assertEquals("1e-8", (0.00000001).toString());
+assertEquals("1.2e-8", (0.000000012).toString());
+assertEquals("1.23e-8", (0.0000000123).toString());
+
+assertEquals("0", (-0).toString());
+assertEquals("-9", (-9).toString());
+assertEquals("-90", (-90).toString());
+assertEquals("-90.12", (-90.12).toString());
+assertEquals("-0.1", (-0.1).toString());
+assertEquals("-0.01", (-0.01).toString());
+assertEquals("-0.0123", (-0.0123).toString())
+assertEquals("-111111111111111110000", (-111111111111111111111).toString());
+assertEquals("-1.1111111111111111e+21", (-1111111111111111111111).toString());
+assertEquals("-1.1111111111111111e+22", (-11111111111111111111111).toString());
+assertEquals("-0.00001", (-0.00001).toString());
+assertEquals("-0.000001", (-0.000001).toString());
+assertEquals("-1e-7", (-0.0000001).toString());
+assertEquals("-1.2e-7", (-0.00000012).toString());
+assertEquals("-1.23e-7", (-0.000000123).toString());
+assertEquals("-1e-8", (-0.00000001).toString());
+assertEquals("-1.2e-8", (-0.000000012).toString());
+assertEquals("-1.23e-8", (-0.0000000123).toString());
+
+assertEquals("NaN", (NaN).toString(16));
+assertEquals("Infinity", (1/0).toString(16));
+assertEquals("-Infinity", (-1/0).toString(16));
+assertEquals("0", (0).toString(16));
+assertEquals("9", (9).toString(16));
+assertEquals("5a", (90).toString(16));
+assertEquals("5a.1eb851eb852", (90.12).toString(16));
+assertEquals("0.1999999999999a", (0.1).toString(16));
+assertEquals("0.028f5c28f5c28f6", (0.01).toString(16));
+assertEquals("0.032617c1bda511a", (0.0123).toString(16));
+assertEquals("605f9f6dd18bc8000", (111111111111111111111).toString(16));
+assertEquals("3c3bc3a4a2f75c0000", (1111111111111111111111).toString(16));
+assertEquals("25a55a46e5da9a00000", (11111111111111111111111).toString(16));
+assertEquals("0.0000a7c5ac471b4788", (0.00001).toString(16));
+assertEquals("0.000010c6f7a0b5ed8d", (0.000001).toString(16));
+assertEquals("0.000001ad7f29abcaf48", (0.0000001).toString(16));
+assertEquals("0.000002036565348d256", (0.00000012).toString(16));
+assertEquals("0.0000021047ee22aa466", (0.000000123).toString(16));
+assertEquals("0.0000002af31dc4611874", (0.00000001).toString(16));
+assertEquals("0.000000338a23b87483be", (0.000000012).toString(16));
+assertEquals("0.00000034d3fe36aaa0a2", (0.0000000123).toString(16));
+
+assertEquals("0", (-0).toString(16));
+assertEquals("-9", (-9).toString(16));
+assertEquals("-5a", (-90).toString(16));
+assertEquals("-5a.1eb851eb852", (-90.12).toString(16));
+assertEquals("-0.1999999999999a", (-0.1).toString(16));
+assertEquals("-0.028f5c28f5c28f6", (-0.01).toString(16));
+assertEquals("-0.032617c1bda511a", (-0.0123).toString(16));
+assertEquals("-605f9f6dd18bc8000", (-111111111111111111111).toString(16));
+assertEquals("-3c3bc3a4a2f75c0000", (-1111111111111111111111).toString(16));
+assertEquals("-25a55a46e5da9a00000", (-11111111111111111111111).toString(16));
+assertEquals("-0.0000a7c5ac471b4788", (-0.00001).toString(16));
+assertEquals("-0.000010c6f7a0b5ed8d", (-0.000001).toString(16));
+assertEquals("-0.000001ad7f29abcaf48", (-0.0000001).toString(16));
+assertEquals("-0.000002036565348d256", (-0.00000012).toString(16));
+assertEquals("-0.0000021047ee22aa466", (-0.000000123).toString(16));
+assertEquals("-0.0000002af31dc4611874", (-0.00000001).toString(16));
+assertEquals("-0.000000338a23b87483be", (-0.000000012).toString(16));
+assertEquals("-0.00000034d3fe36aaa0a2", (-0.0000000123).toString(16));
+
+assertEquals("4294967296", Math.pow(2,32).toString());
+assertEquals("ffffffff", (Math.pow(2,32)-1).toString(16));
+assertEquals("11111111111111111111111111111111", (Math.pow(2,32)-1).toString(2));
+assertEquals("5yc1z", (10000007).toString(36));
+assertEquals("0", (0).toString(36));
+assertEquals("0", (0).toString(16));
+assertEquals("0", (0).toString(10));
+assertEquals("0", (0).toString(8));
+assertEquals("0", (0).toString(2));
+assertEquals("100000000000000000000000000000000", Math.pow(2,32).toString(2));
+assertEquals("100000000000000000000000000000001", (Math.pow(2,32) + 1).toString(2));
+assertEquals("100000000000080", (0x100000000000081).toString(16));
+assertEquals("1000000000000100", (-(-'0x1000000000000081')).toString(16));
+assertEquals("100000000000000000000000000000000000000000000000010000000", (0x100000000000081).toString(2));
+assertEquals("-11111111111111111111111111111111", (-(Math.pow(2,32)-1)).toString(2));
+assertEquals("-5yc1z", (-10000007).toString(36));
+assertEquals("-100000000000000000000000000000000", (-Math.pow(2,32)).toString(2));
+assertEquals("-100000000000000000000000000000001", (-(Math.pow(2,32) + 1)).toString(2));
+assertEquals("-100000000000080", (-0x100000000000081).toString(16));
+assertEquals("-100000000000000000000000000000000000000000000000010000000", (-0x100000000000081).toString(2));
+assertEquals("1000", (1000).toString());
+assertEquals("0.00001", (0.00001).toString());
+assertEquals("1000000000000000100", (1000000000000000128).toString());
+assertEquals("1e+21", (1000000000000000012800).toString());
+assertEquals("-1e+21", (-1000000000000000012800).toString());
+assertEquals("1e-7", (0.0000001).toString());
+assertEquals("-1e-7", (-0.0000001).toString());
+assertEquals("1.0000000000000001e+21", (1000000000000000128000).toString());
+assertEquals("0.000001", (0.000001).toString());
+assertEquals("1e-7", (0.0000001).toString());
+assertEquals("8.8", (8.5).toString(16));
+assertEquals("-8.8", (-8.5).toString(16));
+
+// ----------------------------------------------------------------------
+// toFixed
+assertEquals("NaN", (NaN).toFixed(2));
+assertEquals("Infinity", (1/0).toFixed(2));
+assertEquals("-Infinity", (-1/0).toFixed(2));
+
+assertEquals("1.1111111111111111e+21", (1111111111111111111111).toFixed(8));
+assertEquals("0.1", (0.1).toFixed(1));
+assertEquals("0.10", (0.1).toFixed(2));
+assertEquals("0.100", (0.1).toFixed(3));
+assertEquals("0.01", (0.01).toFixed(2));
+assertEquals("0.010", (0.01).toFixed(3));
+assertEquals("0.0100", (0.01).toFixed(4));
+assertEquals("0.00", (0.001).toFixed(2));
+assertEquals("0.001", (0.001).toFixed(3));
+assertEquals("0.0010", (0.001).toFixed(4));
+assertEquals("1.0000", (1).toFixed(4));
+assertEquals("1.0", (1).toFixed(1));
+assertEquals("1", (1).toFixed(0));
+assertEquals("12", (12).toFixed(0));
+assertEquals("1", (1.1).toFixed(0));
+assertEquals("12", (12.1).toFixed(0));
+assertEquals("1", (1.12).toFixed(0));
+assertEquals("12", (12.12).toFixed(0));
+assertEquals("0.0000006", (0.0000006).toFixed(7));
+assertEquals("0.00000006", (0.00000006).toFixed(8));
+assertEquals("0.000000060", (0.00000006).toFixed(9));
+assertEquals("0.0000000600", (0.00000006).toFixed(10));
+assertEquals("0", (0).toFixed(0));
+assertEquals("0.0", (0).toFixed(1));
+assertEquals("0.00", (0).toFixed(2));
+
+assertEquals("-1.1111111111111111e+21", (-1111111111111111111111).toFixed(8));
+assertEquals("-0.1", (-0.1).toFixed(1));
+assertEquals("-0.10", (-0.1).toFixed(2));
+assertEquals("-0.100", (-0.1).toFixed(3));
+assertEquals("-0.01", (-0.01).toFixed(2));
+assertEquals("-0.010", (-0.01).toFixed(3));
+assertEquals("-0.0100", (-0.01).toFixed(4));
+assertEquals("-0.00", (-0.001).toFixed(2));
+assertEquals("-0.001", (-0.001).toFixed(3));
+assertEquals("-0.0010", (-0.001).toFixed(4));
+assertEquals("-1.0000", (-1).toFixed(4));
+assertEquals("-1.0", (-1).toFixed(1));
+assertEquals("-1", (-1).toFixed(0));
+assertEquals("-1", (-1.1).toFixed(0));
+assertEquals("-12", (-12.1).toFixed(0));
+assertEquals("-1", (-1.12).toFixed(0));
+assertEquals("-12", (-12.12).toFixed(0));
+assertEquals("-0.0000006", (-0.0000006).toFixed(7));
+assertEquals("-0.00000006", (-0.00000006).toFixed(8));
+assertEquals("-0.000000060", (-0.00000006).toFixed(9));
+assertEquals("-0.0000000600", (-0.00000006).toFixed(10));
+assertEquals("0", (-0).toFixed(0));
+assertEquals("0.0", (-0).toFixed(1));
+assertEquals("0.00", (-0).toFixed(2));
+
+assertEquals("1000", (1000).toFixed());
+assertEquals("0", (0.00001).toFixed());
+assertEquals("0.00001", (0.00001).toFixed(5));
+assertEquals("0.00000000000000000010", (0.0000000000000000001).toFixed(20));
+assertEquals("0.00001000000000000", (0.00001).toFixed(17));
+assertEquals("1.00000000000000000", (1).toFixed(17));
+assertEquals("1000000000000000128", (1000000000000000128).toFixed());
+assertEquals("100000000000000128.0", (100000000000000128).toFixed(1));
+assertEquals("10000000000000128.00", (10000000000000128).toFixed(2));
+assertEquals("10000000000000128.00000000000000000000", (10000000000000128).toFixed(20));
+assertEquals("0", (0).toFixed());
+assertEquals("-42.000", ((-42).toFixed(3)));
+assertEquals("-1000000000000000128", (-1000000000000000128).toFixed());
+assertEquals("-0.00000000000000000010", (-0.0000000000000000001).toFixed(20));
+assertEquals("0.12312312312312299889", (0.123123123123123).toFixed(20));
+// Test that we round up even when the last digit generated is even.
+// dtoa does not do this in its original form.
+assertEquals("1", 0.5.toFixed(0), "0.5.toFixed(0)");
+assertEquals("-1", -0.5.toFixed(0), "-0.5.toFixed(0)");
+assertEquals("1.3", 1.25.toFixed(1), "1.25.toFixed(1)");
+// This is bizare, but Spidermonkey and KJS behave the same.
+assertEquals("234.2040", (234.20405).toFixed(4), "234.2040.toFixed(4)");
+assertEquals("234.2041", (234.2040506).toFixed(4));
+
+// ----------------------------------------------------------------------
+// toExponential
+assertEquals("1e+0", (1).toExponential());
+assertEquals("1.1e+1", (11).toExponential());
+assertEquals("1.12e+2", (112).toExponential());
+assertEquals("1e+0", (1).toExponential(0));
+assertEquals("1e+1", (11).toExponential(0));
+assertEquals("1e+2", (112).toExponential(0));
+assertEquals("1.0e+0", (1).toExponential(1));
+assertEquals("1.1e+1", (11).toExponential(1));
+assertEquals("1.1e+2", (112).toExponential(1));
+assertEquals("1.00e+0", (1).toExponential(2));
+assertEquals("1.10e+1", (11).toExponential(2));
+assertEquals("1.12e+2", (112).toExponential(2));
+assertEquals("1.000e+0", (1).toExponential(3));
+assertEquals("1.100e+1", (11).toExponential(3));
+assertEquals("1.120e+2", (112).toExponential(3));
+assertEquals("1e-1", (0.1).toExponential());
+assertEquals("1.1e-1", (0.11).toExponential());
+assertEquals("1.12e-1", (0.112).toExponential());
+assertEquals("1e-1", (0.1).toExponential(0));
+assertEquals("1e-1", (0.11).toExponential(0));
+assertEquals("1e-1", (0.112).toExponential(0));
+assertEquals("1.0e-1", (0.1).toExponential(1));
+assertEquals("1.1e-1", (0.11).toExponential(1));
+assertEquals("1.1e-1", (0.112).toExponential(1));
+assertEquals("1.00e-1", (0.1).toExponential(2));
+assertEquals("1.10e-1", (0.11).toExponential(2));
+assertEquals("1.12e-1", (0.112).toExponential(2));
+assertEquals("1.000e-1", (0.1).toExponential(3));
+assertEquals("1.100e-1", (0.11).toExponential(3));
+assertEquals("1.120e-1", (0.112).toExponential(3));
+
+assertEquals("-1e+0", (-1).toExponential());
+assertEquals("-1.1e+1", (-11).toExponential());
+assertEquals("-1.12e+2", (-112).toExponential());
+assertEquals("-1e+0", (-1).toExponential(0));
+assertEquals("-1e+1", (-11).toExponential(0));
+assertEquals("-1e+2", (-112).toExponential(0));
+assertEquals("-1.0e+0", (-1).toExponential(1));
+assertEquals("-1.1e+1", (-11).toExponential(1));
+assertEquals("-1.1e+2", (-112).toExponential(1));
+assertEquals("-1.00e+0", (-1).toExponential(2));
+assertEquals("-1.10e+1", (-11).toExponential(2));
+assertEquals("-1.12e+2", (-112).toExponential(2));
+assertEquals("-1.000e+0", (-1).toExponential(3));
+assertEquals("-1.100e+1", (-11).toExponential(3));
+assertEquals("-1.120e+2", (-112).toExponential(3));
+assertEquals("-1e-1", (-0.1).toExponential());
+assertEquals("-1.1e-1", (-0.11).toExponential());
+assertEquals("-1.12e-1", (-0.112).toExponential());
+assertEquals("-1e-1", (-0.1).toExponential(0));
+assertEquals("-1e-1", (-0.11).toExponential(0));
+assertEquals("-1e-1", (-0.112).toExponential(0));
+assertEquals("-1.0e-1", (-0.1).toExponential(1));
+assertEquals("-1.1e-1", (-0.11).toExponential(1));
+assertEquals("-1.1e-1", (-0.112).toExponential(1));
+assertEquals("-1.00e-1", (-0.1).toExponential(2));
+assertEquals("-1.10e-1", (-0.11).toExponential(2));
+assertEquals("-1.12e-1", (-0.112).toExponential(2));
+assertEquals("-1.000e-1", (-0.1).toExponential(3));
+assertEquals("-1.100e-1", (-0.11).toExponential(3));
+assertEquals("-1.120e-1", (-0.112).toExponential(3));
+
+assertEquals("NaN", (NaN).toExponential(2));
+assertEquals("Infinity", (Infinity).toExponential(2));
+assertEquals("-Infinity", (-Infinity).toExponential(2));
+assertEquals("1e+0", (1).toExponential(0));
+assertEquals("0e+0", (0).toExponential());
+assertEquals("0.00e+0", (0).toExponential(2));
+assertEquals("1e+1", (11.2356).toExponential(0));
+assertEquals("1.1236e+1", (11.2356).toExponential(4));
+assertEquals("1.1236e-4", (0.000112356).toExponential(4));
+assertEquals("-1.1236e-4", (-0.000112356).toExponential(4));
+assertEquals("1.12356e-4", (0.000112356).toExponential());
+assertEquals("-1.12356e-4", (-0.000112356).toExponential());
+
+// ----------------------------------------------------------------------
+// toPrecision
+assertEquals("NaN", (NaN).toPrecision(1));
+assertEquals("Infinity", (Infinity).toPrecision(2));
+assertEquals("-Infinity", (-Infinity).toPrecision(2));
+assertEquals("0.000555000000000000", (0.000555).toPrecision(15));
+assertEquals("5.55000000000000e-7", (0.000000555).toPrecision(15));
+assertEquals("-5.55000000000000e-7", (-0.000000555).toPrecision(15));
+assertEquals("1e+8", (123456789).toPrecision(1));
+assertEquals("123456789", (123456789).toPrecision(9));
+assertEquals("1.2345679e+8", (123456789).toPrecision(8));
+assertEquals("1.234568e+8", (123456789).toPrecision(7));
+assertEquals("-1.234568e+8", (-123456789).toPrecision(7));
+assertEquals("-1.2e-9", Number(-.0000000012345).toPrecision(2));
+assertEquals("-1.2e-8", Number(-.000000012345).toPrecision(2));
+assertEquals("-1.2e-7", Number(-.00000012345).toPrecision(2));
+assertEquals("-0.0000012", Number(-.0000012345).toPrecision(2));
+assertEquals("-0.000012", Number(-.000012345).toPrecision(2));
+assertEquals("-0.00012", Number(-.00012345).toPrecision(2));
+assertEquals("-0.0012", Number(-.0012345).toPrecision(2));
+assertEquals("-0.012", Number(-.012345).toPrecision(2));
+assertEquals("-0.12", Number(-.12345).toPrecision(2));
+assertEquals("-1.2", Number(-1.2345).toPrecision(2));
+assertEquals("-12", Number(-12.345).toPrecision(2));
+assertEquals("-1.2e+2", Number(-123.45).toPrecision(2));
+assertEquals("-1.2e+3", Number(-1234.5).toPrecision(2));
+assertEquals("-1.2e+4", Number(-12345).toPrecision(2));
+assertEquals("-1.235e+4", Number(-12345.67).toPrecision(4));
+assertEquals("-1.234e+4", Number(-12344.67).toPrecision(4));
+// Test that we round up even when the last digit generated is even.
+// dtoa does not do this in its original form.
+assertEquals("1.3", 1.25.toPrecision(2), "1.25.toPrecision(2)");
+assertEquals("1.4", 1.35.toPrecision(2), "1.35.toPrecision(2)");
+
+
+