deps: downgrade v8 to 3.14.5

V8 3.15 and newer have stability and performance issues. Roll back to
a known-good version.

5 files changed, 2 insertions, 1114 deletions

diff --git a/deps/v8/test/mjsunit/harmony/collections.js b/deps/v8/test/mjsunit/harmony/collections.js
index 0219f39364..f3db7ea2b7 100644
--- a/deps/v8/test/mjsunit/harmony/collections.js
+++ b/deps/v8/test/mjsunit/harmony/collections.js
@@ -313,60 +313,4 @@ TestBogusReceivers(bogusReceiversTestSet);
 // Stress Test
 // There is a proposed stress-test available at the es-discuss mailing list
 // which cannot be reasonably automated.  Check it out by hand if you like:
-// https://mail.mozilla.org/pipermail/es-discuss/2011-May/014096.html
-
-
-// Set and Map size getters
-var setSizeDescriptor = Object.getOwnPropertyDescriptor(Set.prototype, 'size');
-assertEquals(undefined, setSizeDescriptor.value);
-assertEquals(undefined, setSizeDescriptor.set);
-assertTrue(setSizeDescriptor.get instanceof Function);
-assertEquals(undefined, setSizeDescriptor.get.prototype);
-assertFalse(setSizeDescriptor.enumerable);
-assertTrue(setSizeDescriptor.configurable);
-
-var s = new Set();
-assertFalse(s.hasOwnProperty('size'));
-for (var i = 0; i < 10; i++) {
-  assertEquals(i, s.size);
-  s.add(i);
-}
-for (var i = 9; i >= 0; i--) {
-  s.delete(i);
-  assertEquals(i, s.size);
-}
-
-
-var mapSizeDescriptor = Object.getOwnPropertyDescriptor(Map.prototype, 'size');
-assertEquals(undefined, mapSizeDescriptor.value);
-assertEquals(undefined, mapSizeDescriptor.set);
-assertTrue(mapSizeDescriptor.get instanceof Function);
-assertEquals(undefined, mapSizeDescriptor.get.prototype);
-assertFalse(mapSizeDescriptor.enumerable);
-assertTrue(mapSizeDescriptor.configurable);
-
-var m = new Map();
-assertFalse(m.hasOwnProperty('size'));
-for (var i = 0; i < 10; i++) {
-  assertEquals(i, m.size);
-  m.set(i, i);
-}
-for (var i = 9; i >= 0; i--) {
-  m.delete(i);
-  assertEquals(i, m.size);
-}
-
-// Test clear
-var a = new Set();
-s.add(42);
-assertTrue(s.has(42));
-s.clear();
-assertFalse(s.has(42));
-assertEquals(0, s.size);
-
-var m = new Map();
-m.set(42, true);
-assertTrue(m.has(42));
-m.clear();
-assertFalse(m.has(42));
-assertEquals(0, m.size);
+// https://mail.mozilla.org/pipermail/es-discuss/2011-May/014096.html
\ No newline at end of file
diff --git a/deps/v8/test/mjsunit/harmony/module-linking.js b/deps/v8/test/mjsunit/harmony/module-linking.js
index 3c0f18c37d..a4b272f468 100644
--- a/deps/v8/test/mjsunit/harmony/module-linking.js
+++ b/deps/v8/test/mjsunit/harmony/module-linking.js
@@ -112,7 +112,7 @@ module R {
   assertThrows(function() { eval("c = -1") }, SyntaxError)
   assertThrows(function() { R.c = -2 }, TypeError)
 
-  // Initialize first bunch of variables.
+  // Initialize first bunch or variables.
   export var v = 1
   export let l = 2
   export const c = 3
diff --git a/deps/v8/test/mjsunit/harmony/object-observe.js b/deps/v8/test/mjsunit/harmony/object-observe.js
deleted file mode 100644
index 04dfb967b3..0000000000
--- a/deps/v8/test/mjsunit/harmony/object-observe.js
+++ /dev/null
@@ -1,873 +0,0 @@
-// Copyright 2012 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.
-
-// Flags: --harmony-observation --harmony-proxies --harmony-collections
-
-var allObservers = [];
-function reset() {
-  allObservers.forEach(function(observer) { observer.reset(); });
-}
-
-function stringifyNoThrow(arg) {
-  try {
-    return JSON.stringify(arg);
-  } catch (e) {
-    return '{<circular reference>}';
-  }
-}
-
-function createObserver() {
-  "use strict";  // So that |this| in callback can be undefined.
-
-  var observer = {
-    records: undefined,
-    callbackCount: 0,
-    reset: function() {
-      this.records = undefined;
-      this.callbackCount = 0;
-    },
-    assertNotCalled: function() {
-      assertEquals(undefined, this.records);
-      assertEquals(0, this.callbackCount);
-    },
-    assertCalled: function() {
-      assertEquals(1, this.callbackCount);
-    },
-    assertRecordCount: function(count) {
-      this.assertCalled();
-      assertEquals(count, this.records.length);
-    },
-    assertCallbackRecords: function(recs) {
-      this.assertRecordCount(recs.length);
-      for (var i = 0; i < recs.length; i++) {
-        if ('name' in recs[i])
-          recs[i].name = String(recs[i].name);
-        print(i, stringifyNoThrow(this.records[i]), stringifyNoThrow(recs[i]));
-        assertSame(this.records[i].object, recs[i].object);
-        assertEquals('string', typeof recs[i].type);
-        assertPropertiesEqual(this.records[i], recs[i]);
-      }
-    }
-  };
-
-  observer.callback = function(r) {
-    assertEquals(undefined, this);
-    assertEquals('object', typeof r);
-    assertTrue(r instanceof Array)
-    observer.records = r;
-    observer.callbackCount++;
-  };
-
-  observer.reset();
-  allObservers.push(observer);
-  return observer;
-}
-
-var observer = createObserver();
-assertEquals("function", typeof observer.callback);
-var obj = {};
-
-function frozenFunction() {}
-Object.freeze(frozenFunction);
-var nonFunction = {};
-var changeRecordWithAccessor = { type: 'foo' };
-var recordCreated = false;
-Object.defineProperty(changeRecordWithAccessor, 'name', {
-  get: function() {
-    recordCreated = true;
-    return "bar";
-  },
-  enumerable: true
-})
-
-// Object.observe
-assertThrows(function() { Object.observe("non-object", observer.callback); }, TypeError);
-assertThrows(function() { Object.observe(obj, nonFunction); }, TypeError);
-assertThrows(function() { Object.observe(obj, frozenFunction); }, TypeError);
-assertEquals(obj, Object.observe(obj, observer.callback));
-
-// Object.unobserve
-assertThrows(function() { Object.unobserve(4, observer.callback); }, TypeError);
-assertThrows(function() { Object.unobserve(obj, nonFunction); }, TypeError);
-assertEquals(obj, Object.unobserve(obj, observer.callback));
-
-// Object.getNotifier
-var notifier = Object.getNotifier(obj);
-assertSame(notifier, Object.getNotifier(obj));
-assertEquals(null, Object.getNotifier(Object.freeze({})));
-assertFalse(notifier.hasOwnProperty('notify'));
-assertEquals([], Object.keys(notifier));
-var notifyDesc = Object.getOwnPropertyDescriptor(notifier.__proto__, 'notify');
-assertTrue(notifyDesc.configurable);
-assertTrue(notifyDesc.writable);
-assertFalse(notifyDesc.enumerable);
-assertThrows(function() { notifier.notify({}); }, TypeError);
-assertThrows(function() { notifier.notify({ type: 4 }); }, TypeError);
-var notify = notifier.notify;
-assertThrows(function() { notify.call(undefined, { type: 'a' }); }, TypeError);
-assertThrows(function() { notify.call(null, { type: 'a' }); }, TypeError);
-assertThrows(function() { notify.call(5, { type: 'a' }); }, TypeError);
-assertThrows(function() { notify.call('hello', { type: 'a' }); }, TypeError);
-assertThrows(function() { notify.call(false, { type: 'a' }); }, TypeError);
-assertThrows(function() { notify.call({}, { type: 'a' }); }, TypeError);
-assertFalse(recordCreated);
-notifier.notify(changeRecordWithAccessor);
-assertFalse(recordCreated);  // not observed yet
-
-// Object.deliverChangeRecords
-assertThrows(function() { Object.deliverChangeRecords(nonFunction); }, TypeError);
-
-Object.observe(obj, observer.callback);
-
-// notify uses to [[CreateOwnProperty]] to create changeRecord;
-reset();
-var protoExpandoAccessed = false;
-Object.defineProperty(Object.prototype, 'protoExpando',
-  {
-    configurable: true,
-    set: function() { protoExpandoAccessed = true; }
-  }
-);
-notifier.notify({ type: 'foo', protoExpando: 'val'});
-assertFalse(protoExpandoAccessed);
-delete Object.prototype.protoExpando;
-Object.deliverChangeRecords(observer.callback);
-
-// Multiple records are delivered.
-reset();
-notifier.notify({
-  type: 'updated',
-  name: 'foo',
-  expando: 1
-});
-
-notifier.notify({
-  object: notifier,  // object property is ignored
-  type: 'deleted',
-  name: 'bar',
-  expando2: 'str'
-});
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: obj, name: 'foo', type: 'updated', expando: 1 },
-  { object: obj, name: 'bar', type: 'deleted', expando2: 'str' }
-]);
-
-// No delivery takes place if no records are pending
-reset();
-Object.deliverChangeRecords(observer.callback);
-observer.assertNotCalled();
-
-// Multiple observation has no effect.
-reset();
-Object.observe(obj, observer.callback);
-Object.observe(obj, observer.callback);
-Object.getNotifier(obj).notify({
-  type: 'foo',
-});
-Object.deliverChangeRecords(observer.callback);
-observer.assertCalled();
-
-// Observation can be stopped.
-reset();
-Object.unobserve(obj, observer.callback);
-Object.getNotifier(obj).notify({
-  type: 'foo',
-});
-Object.deliverChangeRecords(observer.callback);
-observer.assertNotCalled();
-
-// Multiple unobservation has no effect
-reset();
-Object.unobserve(obj, observer.callback);
-Object.unobserve(obj, observer.callback);
-Object.getNotifier(obj).notify({
-  type: 'foo',
-});
-Object.deliverChangeRecords(observer.callback);
-observer.assertNotCalled();
-
-// Re-observation works and only includes changeRecords after of call.
-reset();
-Object.getNotifier(obj).notify({
-  type: 'foo',
-});
-Object.observe(obj, observer.callback);
-Object.getNotifier(obj).notify({
-  type: 'foo',
-});
-records = undefined;
-Object.deliverChangeRecords(observer.callback);
-observer.assertRecordCount(1);
-
-// Observing a continuous stream of changes, while itermittantly unobserving.
-reset();
-Object.observe(obj, observer.callback);
-Object.getNotifier(obj).notify({
-  type: 'foo',
-  val: 1
-});
-
-Object.unobserve(obj, observer.callback);
-Object.getNotifier(obj).notify({
-  type: 'foo',
-  val: 2
-});
-
-Object.observe(obj, observer.callback);
-Object.getNotifier(obj).notify({
-  type: 'foo',
-  val: 3
-});
-
-Object.unobserve(obj, observer.callback);
-Object.getNotifier(obj).notify({
-  type: 'foo',
-  val: 4
-});
-
-Object.observe(obj, observer.callback);
-Object.getNotifier(obj).notify({
-  type: 'foo',
-  val: 5
-});
-
-Object.unobserve(obj, observer.callback);
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: obj, type: 'foo', val: 1 },
-  { object: obj, type: 'foo', val: 3 },
-  { object: obj, type: 'foo', val: 5 }
-]);
-
-// Observing multiple objects; records appear in order.
-reset();
-var obj2 = {};
-var obj3 = {}
-Object.observe(obj, observer.callback);
-Object.observe(obj3, observer.callback);
-Object.observe(obj2, observer.callback);
-Object.getNotifier(obj).notify({
-  type: 'foo1',
-});
-Object.getNotifier(obj2).notify({
-  type: 'foo2',
-});
-Object.getNotifier(obj3).notify({
-  type: 'foo3',
-});
-Object.observe(obj3, observer.callback);
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: obj, type: 'foo1' },
-  { object: obj2, type: 'foo2' },
-  { object: obj3, type: 'foo3' }
-]);
-
-// Observing named properties.
-reset();
-var obj = {a: 1}
-Object.observe(obj, observer.callback);
-obj.a = 2;
-obj["a"] = 3;
-delete obj.a;
-obj.a = 4;
-obj.a = 4;  // ignored
-obj.a = 5;
-Object.defineProperty(obj, "a", {value: 6});
-Object.defineProperty(obj, "a", {writable: false});
-obj.a = 7;  // ignored
-Object.defineProperty(obj, "a", {value: 8});
-Object.defineProperty(obj, "a", {value: 7, writable: true});
-Object.defineProperty(obj, "a", {get: function() {}});
-Object.defineProperty(obj, "a", {get: frozenFunction});
-Object.defineProperty(obj, "a", {get: frozenFunction});  // ignored
-Object.defineProperty(obj, "a", {get: frozenFunction, set: frozenFunction});
-Object.defineProperty(obj, "a", {set: frozenFunction});  // ignored
-Object.defineProperty(obj, "a", {get: undefined, set: frozenFunction});
-delete obj.a;
-delete obj.a;
-Object.defineProperty(obj, "a", {get: function() {}, configurable: true});
-Object.defineProperty(obj, "a", {value: 9, writable: true});
-obj.a = 10;
-delete obj.a;
-Object.defineProperty(obj, "a", {value: 11, configurable: true});
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: obj, name: "a", type: "updated", oldValue: 1 },
-  { object: obj, name: "a", type: "updated", oldValue: 2 },
-  { object: obj, name: "a", type: "deleted", oldValue: 3 },
-  { object: obj, name: "a", type: "new" },
-  { object: obj, name: "a", type: "updated", oldValue: 4 },
-  { object: obj, name: "a", type: "updated", oldValue: 5 },
-  { object: obj, name: "a", type: "reconfigured", oldValue: 6 },
-  { object: obj, name: "a", type: "updated", oldValue: 6 },
-  { object: obj, name: "a", type: "reconfigured", oldValue: 8 },
-  { object: obj, name: "a", type: "reconfigured", oldValue: 7 },
-  { object: obj, name: "a", type: "reconfigured" },
-  { object: obj, name: "a", type: "reconfigured" },
-  { object: obj, name: "a", type: "reconfigured" },
-  { object: obj, name: "a", type: "deleted" },
-  { object: obj, name: "a", type: "new" },
-  { object: obj, name: "a", type: "reconfigured" },
-  { object: obj, name: "a", type: "updated", oldValue: 9 },
-  { object: obj, name: "a", type: "deleted", oldValue: 10 },
-  { object: obj, name: "a", type: "new" },
-]);
-
-// Observing indexed properties.
-reset();
-var obj = {'1': 1}
-Object.observe(obj, observer.callback);
-obj[1] = 2;
-obj[1] = 3;
-delete obj[1];
-obj[1] = 4;
-obj[1] = 4;  // ignored
-obj[1] = 5;
-Object.defineProperty(obj, "1", {value: 6});
-Object.defineProperty(obj, "1", {writable: false});
-obj[1] = 7;  // ignored
-Object.defineProperty(obj, "1", {value: 8});
-Object.defineProperty(obj, "1", {value: 7, writable: true});
-Object.defineProperty(obj, "1", {get: function() {}});
-Object.defineProperty(obj, "1", {get: frozenFunction});
-Object.defineProperty(obj, "1", {get: frozenFunction});  // ignored
-Object.defineProperty(obj, "1", {get: frozenFunction, set: frozenFunction});
-Object.defineProperty(obj, "1", {set: frozenFunction});  // ignored
-Object.defineProperty(obj, "1", {get: undefined, set: frozenFunction});
-delete obj[1];
-delete obj[1];
-Object.defineProperty(obj, "1", {get: function() {}, configurable: true});
-Object.defineProperty(obj, "1", {value: 9, writable: true});
-obj[1] = 10;
-delete obj[1];
-Object.defineProperty(obj, "1", {value: 11, configurable: true});
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: obj, name: "1", type: "updated", oldValue: 1 },
-  { object: obj, name: "1", type: "updated", oldValue: 2 },
-  { object: obj, name: "1", type: "deleted", oldValue: 3 },
-  { object: obj, name: "1", type: "new" },
-  { object: obj, name: "1", type: "updated", oldValue: 4 },
-  { object: obj, name: "1", type: "updated", oldValue: 5 },
-  { object: obj, name: "1", type: "reconfigured", oldValue: 6 },
-  { object: obj, name: "1", type: "updated", oldValue: 6 },
-  { object: obj, name: "1", type: "reconfigured", oldValue: 8 },
-  { object: obj, name: "1", type: "reconfigured", oldValue: 7 },
-  { object: obj, name: "1", type: "reconfigured" },
-  { object: obj, name: "1", type: "reconfigured" },
-  { object: obj, name: "1", type: "reconfigured" },
-  { object: obj, name: "1", type: "deleted" },
-  { object: obj, name: "1", type: "new" },
-  { object: obj, name: "1", type: "reconfigured" },
-  { object: obj, name: "1", type: "updated", oldValue: 9 },
-  { object: obj, name: "1", type: "deleted", oldValue: 10 },
-  { object: obj, name: "1", type: "new" },
-]);
-
-
-// Test all kinds of objects generically.
-function TestObserveConfigurable(obj, prop) {
-  reset();
-  obj[prop] = 1;
-  Object.observe(obj, observer.callback);
-  obj[prop] = 2;
-  obj[prop] = 3;
-  delete obj[prop];
-  obj[prop] = 4;
-  obj[prop] = 4;  // ignored
-  obj[prop] = 5;
-  Object.defineProperty(obj, prop, {value: 6});
-  Object.defineProperty(obj, prop, {writable: false});
-  obj[prop] = 7;  // ignored
-  Object.defineProperty(obj, prop, {value: 8});
-  Object.defineProperty(obj, prop, {value: 7, writable: true});
-  Object.defineProperty(obj, prop, {get: function() {}});
-  Object.defineProperty(obj, prop, {get: frozenFunction});
-  Object.defineProperty(obj, prop, {get: frozenFunction});  // ignored
-  Object.defineProperty(obj, prop, {get: frozenFunction, set: frozenFunction});
-  Object.defineProperty(obj, prop, {set: frozenFunction});  // ignored
-  Object.defineProperty(obj, prop, {get: undefined, set: frozenFunction});
-  obj.__defineSetter__(prop, frozenFunction);  // ignored
-  obj.__defineSetter__(prop, function() {});
-  obj.__defineGetter__(prop, function() {});
-  delete obj[prop];
-  delete obj[prop];  // ignored
-  obj.__defineGetter__(prop, function() {});
-  delete obj[prop];
-  Object.defineProperty(obj, prop, {get: function() {}, configurable: true});
-  Object.defineProperty(obj, prop, {value: 9, writable: true});
-  obj[prop] = 10;
-  delete obj[prop];
-  Object.defineProperty(obj, prop, {value: 11, configurable: true});
-  Object.deliverChangeRecords(observer.callback);
-  observer.assertCallbackRecords([
-    { object: obj, name: prop, type: "updated", oldValue: 1 },
-    { object: obj, name: prop, type: "updated", oldValue: 2 },
-    { object: obj, name: prop, type: "deleted", oldValue: 3 },
-    { object: obj, name: prop, type: "new" },
-    { object: obj, name: prop, type: "updated", oldValue: 4 },
-    { object: obj, name: prop, type: "updated", oldValue: 5 },
-    { object: obj, name: prop, type: "reconfigured", oldValue: 6 },
-    { object: obj, name: prop, type: "updated", oldValue: 6 },
-    { object: obj, name: prop, type: "reconfigured", oldValue: 8 },
-    { object: obj, name: prop, type: "reconfigured", oldValue: 7 },
-    { object: obj, name: prop, type: "reconfigured" },
-    { object: obj, name: prop, type: "reconfigured" },
-    { object: obj, name: prop, type: "reconfigured" },
-    { object: obj, name: prop, type: "reconfigured" },
-    { object: obj, name: prop, type: "reconfigured" },
-    { object: obj, name: prop, type: "deleted" },
-    { object: obj, name: prop, type: "new" },
-    { object: obj, name: prop, type: "deleted" },
-    { object: obj, name: prop, type: "new" },
-    { object: obj, name: prop, type: "reconfigured" },
-    { object: obj, name: prop, type: "updated", oldValue: 9 },
-    { object: obj, name: prop, type: "deleted", oldValue: 10 },
-    { object: obj, name: prop, type: "new" },
-  ]);
-  Object.unobserve(obj, observer.callback);
-  delete obj[prop];
-}
-
-function TestObserveNonConfigurable(obj, prop, desc) {
-  reset();
-  obj[prop] = 1;
-  Object.observe(obj, observer.callback);
-  obj[prop] = 4;
-  obj[prop] = 4;  // ignored
-  obj[prop] = 5;
-  Object.defineProperty(obj, prop, {value: 6});
-  Object.defineProperty(obj, prop, {value: 6});  // ignored
-  Object.defineProperty(obj, prop, {value: 7});
-  Object.defineProperty(obj, prop,
-                        {enumerable: desc.enumerable});  // ignored
-  Object.defineProperty(obj, prop, {writable: false});
-  obj[prop] = 7;  // ignored
-  Object.deliverChangeRecords(observer.callback);
-  observer.assertCallbackRecords([
-    { object: obj, name: prop, type: "updated", oldValue: 1 },
-    { object: obj, name: prop, type: "updated", oldValue: 4 },
-    { object: obj, name: prop, type: "updated", oldValue: 5 },
-    { object: obj, name: prop, type: "updated", oldValue: 6 },
-    { object: obj, name: prop, type: "reconfigured", oldValue: 7 },
-  ]);
-  Object.unobserve(obj, observer.callback);
-}
-
-function createProxy(create, x) {
-  var handler = {
-    getPropertyDescriptor: function(k) {
-      for (var o = this.target; o; o = Object.getPrototypeOf(o)) {
-        var desc = Object.getOwnPropertyDescriptor(o, k);
-        if (desc) return desc;
-      }
-      return undefined;
-    },
-    getOwnPropertyDescriptor: function(k) {
-      return Object.getOwnPropertyDescriptor(this.target, k);
-    },
-    defineProperty: function(k, desc) {
-      var x = Object.defineProperty(this.target, k, desc);
-      Object.deliverChangeRecords(this.callback);
-      return x;
-    },
-    delete: function(k) {
-      var x = delete this.target[k];
-      Object.deliverChangeRecords(this.callback);
-      return x;
-    },
-    getPropertyNames: function() {
-      return Object.getOwnPropertyNames(this.target);
-    },
-    target: {isProxy: true},
-    callback: function(changeRecords) {
-      print("callback", stringifyNoThrow(handler.proxy), stringifyNoThrow(got));
-      for (var i in changeRecords) {
-        var got = changeRecords[i];
-        var change = {object: handler.proxy, name: got.name, type: got.type};
-        if ("oldValue" in got) change.oldValue = got.oldValue;
-        Object.getNotifier(handler.proxy).notify(change);
-      }
-    },
-  };
-  Object.observe(handler.target, handler.callback);
-  return handler.proxy = create(handler, x);
-}
-
-var objects = [
-  {},
-  [],
-  this,  // global object
-  function(){},
-  (function(){ return arguments })(),
-  (function(){ "use strict"; return arguments })(),
-  Object(1), Object(true), Object("bla"),
-  new Date(),
-  Object, Function, Date, RegExp,
-  new Set, new Map, new WeakMap,
-  new ArrayBuffer(10), new Int32Array(5),
-  createProxy(Proxy.create, null),
-  createProxy(Proxy.createFunction, function(){}),
-];
-var properties = ["a", "1", 1, "length", "prototype"];
-
-// Cases that yield non-standard results.
-// TODO(observe): ...or don't work yet.
-function blacklisted(obj, prop) {
-  return (obj instanceof Int32Array && prop == 1) ||
-    (obj instanceof Int32Array && prop === "length") ||
-    (obj instanceof ArrayBuffer && prop == 1) ||
-    // TODO(observe): oldValue when reconfiguring array length
-    (obj instanceof Array && prop === "length")
-}
-
-for (var i in objects) for (var j in properties) {
-  var obj = objects[i];
-  var prop = properties[j];
-  if (blacklisted(obj, prop)) continue;
-  var desc = Object.getOwnPropertyDescriptor(obj, prop);
-  print("***", typeof obj, stringifyNoThrow(obj), prop);
-  if (!desc || desc.configurable)
-    TestObserveConfigurable(obj, prop);
-  else if (desc.writable)
-    TestObserveNonConfigurable(obj, prop, desc);
-}
-
-
-// Observing array length (including truncation)
-reset();
-var arr = ['a', 'b', 'c', 'd'];
-var arr2 = ['alpha', 'beta'];
-var arr3 = ['hello'];
-arr3[2] = 'goodbye';
-arr3.length = 6;
-// TODO(adamk): Enable this test case when it can run in a reasonable
-// amount of time.
-//var slow_arr = new Array(1000000000);
-//slow_arr[500000000] = 'hello';
-Object.defineProperty(arr, '0', {configurable: false});
-Object.defineProperty(arr, '2', {get: function(){}});
-Object.defineProperty(arr2, '0', {get: function(){}, configurable: false});
-Object.observe(arr, observer.callback);
-Object.observe(arr2, observer.callback);
-Object.observe(arr3, observer.callback);
-arr.length = 2;
-arr.length = 0;
-arr.length = 10;
-arr2.length = 0;
-arr2.length = 1; // no change expected
-arr3.length = 0;
-Object.defineProperty(arr3, 'length', {value: 5});
-Object.defineProperty(arr3, 'length', {value: 10, writable: false});
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: arr, name: '3', type: 'deleted', oldValue: 'd' },
-  { object: arr, name: '2', type: 'deleted' },
-  { object: arr, name: 'length', type: 'updated', oldValue: 4 },
-  { object: arr, name: '1', type: 'deleted', oldValue: 'b' },
-  { object: arr, name: 'length', type: 'updated', oldValue: 2 },
-  { object: arr, name: 'length', type: 'updated', oldValue: 1 },
-  { object: arr2, name: '1', type: 'deleted', oldValue: 'beta' },
-  { object: arr2, name: 'length', type: 'updated', oldValue: 2 },
-  { object: arr3, name: '2', type: 'deleted', oldValue: 'goodbye' },
-  { object: arr3, name: '0', type: 'deleted', oldValue: 'hello' },
-  { object: arr3, name: 'length', type: 'updated', oldValue: 6 },
-  { object: arr3, name: 'length', type: 'updated', oldValue: 0 },
-  { object: arr3, name: 'length', type: 'updated', oldValue: 5 },
-  // TODO(adamk): This record should be merged with the above
-  { object: arr3, name: 'length', type: 'reconfigured' },
-]);
-
-// Assignments in loops (checking different IC states).
-reset();
-var obj = {};
-Object.observe(obj, observer.callback);
-for (var i = 0; i < 5; i++) {
-  obj["a" + i] = i;
-}
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: obj, name: "a0", type: "new" },
-  { object: obj, name: "a1", type: "new" },
-  { object: obj, name: "a2", type: "new" },
-  { object: obj, name: "a3", type: "new" },
-  { object: obj, name: "a4", type: "new" },
-]);
-
-reset();
-var obj = {};
-Object.observe(obj, observer.callback);
-for (var i = 0; i < 5; i++) {
-  obj[i] = i;
-}
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: obj, name: "0", type: "new" },
-  { object: obj, name: "1", type: "new" },
-  { object: obj, name: "2", type: "new" },
-  { object: obj, name: "3", type: "new" },
-  { object: obj, name: "4", type: "new" },
-]);
-
-// Adding elements past the end of an array should notify on length
-reset();
-var arr = [1, 2, 3];
-Object.observe(arr, observer.callback);
-arr[3] = 10;
-arr[100] = 20;
-Object.defineProperty(arr, '200', {value: 7});
-Object.defineProperty(arr, '400', {get: function(){}});
-arr[50] = 30; // no length change expected
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: arr, name: '3', type: 'new' },
-  { object: arr, name: 'length', type: 'updated', oldValue: 3 },
-  { object: arr, name: '100', type: 'new' },
-  { object: arr, name: 'length', type: 'updated', oldValue: 4 },
-  { object: arr, name: '200', type: 'new' },
-  { object: arr, name: 'length', type: 'updated', oldValue: 101 },
-  { object: arr, name: '400', type: 'new' },
-  { object: arr, name: 'length', type: 'updated', oldValue: 201 },
-  { object: arr, name: '50', type: 'new' },
-]);
-
-// Tests for array methods, first on arrays and then on plain objects
-//
-// === ARRAYS ===
-//
-// Push
-reset();
-var array = [1, 2];
-Object.observe(array, observer.callback);
-array.push(3, 4);
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: array, name: '2', type: 'new' },
-  { object: array, name: 'length', type: 'updated', oldValue: 2 },
-  { object: array, name: '3', type: 'new' },
-  { object: array, name: 'length', type: 'updated', oldValue: 3 },
-]);
-
-// Pop
-reset();
-var array = [1, 2];
-Object.observe(array, observer.callback);
-array.pop();
-array.pop();
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: array, name: '1', type: 'deleted', oldValue: 2 },
-  { object: array, name: 'length', type: 'updated', oldValue: 2 },
-  { object: array, name: '0', type: 'deleted', oldValue: 1 },
-  { object: array, name: 'length', type: 'updated', oldValue: 1 },
-]);
-
-// Shift
-reset();
-var array = [1, 2];
-Object.observe(array, observer.callback);
-array.shift();
-array.shift();
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: array, name: '0', type: 'updated', oldValue: 1 },
-  { object: array, name: '1', type: 'deleted', oldValue: 2 },
-  { object: array, name: 'length', type: 'updated', oldValue: 2 },
-  { object: array, name: '0', type: 'deleted', oldValue: 2 },
-  { object: array, name: 'length', type: 'updated', oldValue: 1 },
-]);
-
-// Unshift
-reset();
-var array = [1, 2];
-Object.observe(array, observer.callback);
-array.unshift(3, 4);
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: array, name: '3', type: 'new' },
-  { object: array, name: 'length', type: 'updated', oldValue: 2 },
-  { object: array, name: '2', type: 'new' },
-  { object: array, name: '0', type: 'updated', oldValue: 1 },
-  { object: array, name: '1', type: 'updated', oldValue: 2 },
-]);
-
-// Splice
-reset();
-var array = [1, 2, 3];
-Object.observe(array, observer.callback);
-array.splice(1, 1, 4, 5);
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: array, name: '3', type: 'new' },
-  { object: array, name: 'length', type: 'updated', oldValue: 3 },
-  { object: array, name: '1', type: 'updated', oldValue: 2 },
-  { object: array, name: '2', type: 'updated', oldValue: 3 },
-]);
-
-//
-// === PLAIN OBJECTS ===
-//
-// Push
-reset()
-var array = {0: 1, 1: 2, length: 2}
-Object.observe(array, observer.callback);
-Array.prototype.push.call(array, 3, 4);
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: array, name: '2', type: 'new' },
-  { object: array, name: '3', type: 'new' },
-  { object: array, name: 'length', type: 'updated', oldValue: 2 },
-]);
-
-// Pop
-reset()
-var array = {0: 1, 1: 2, length: 2};
-Object.observe(array, observer.callback);
-Array.prototype.pop.call(array);
-Array.prototype.pop.call(array);
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: array, name: '1', type: 'deleted', oldValue: 2 },
-  { object: array, name: 'length', type: 'updated', oldValue: 2 },
-  { object: array, name: '0', type: 'deleted', oldValue: 1 },
-  { object: array, name: 'length', type: 'updated', oldValue: 1 },
-]);
-
-// Shift
-reset()
-var array = {0: 1, 1: 2, length: 2};
-Object.observe(array, observer.callback);
-Array.prototype.shift.call(array);
-Array.prototype.shift.call(array);
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: array, name: '0', type: 'updated', oldValue: 1 },
-  { object: array, name: '1', type: 'deleted', oldValue: 2 },
-  { object: array, name: 'length', type: 'updated', oldValue: 2 },
-  { object: array, name: '0', type: 'deleted', oldValue: 2 },
-  { object: array, name: 'length', type: 'updated', oldValue: 1 },
-]);
-
-// Unshift
-reset()
-var array = {0: 1, 1: 2, length: 2};
-Object.observe(array, observer.callback);
-Array.prototype.unshift.call(array, 3, 4);
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: array, name: '3', type: 'new' },
-  { object: array, name: '2', type: 'new' },
-  { object: array, name: '0', type: 'updated', oldValue: 1 },
-  { object: array, name: '1', type: 'updated', oldValue: 2 },
-  { object: array, name: 'length', type: 'updated', oldValue: 2 },
-]);
-
-// Splice
-reset()
-var array = {0: 1, 1: 2, 2: 3, length: 3};
-Object.observe(array, observer.callback);
-Array.prototype.splice.call(array, 1, 1, 4, 5);
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: array, name: '3', type: 'new' },
-  { object: array, name: '1', type: 'updated', oldValue: 2 },
-  { object: array, name: '2', type: 'updated', oldValue: 3 },
-  { object: array, name: 'length', type: 'updated', oldValue: 3 },
-]);
-
-// Exercise StoreIC_ArrayLength
-reset();
-var dummy = {};
-Object.observe(dummy, observer.callback);
-Object.unobserve(dummy, observer.callback);
-var array = [0];
-Object.observe(array, observer.callback);
-array.splice(0, 1);
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: array, name: '0', type: 'deleted', oldValue: 0 },
-  { object: array, name: 'length', type: 'updated', oldValue: 1},
-]);
-
-
-// __proto__
-reset();
-var obj = {};
-Object.observe(obj, observer.callback);
-var p = {foo: 'yes'};
-var q = {bar: 'no'};
-obj.__proto__ = p;
-obj.__proto__ = p;  // ignored
-obj.__proto__ = null;
-obj.__proto__ = q;
-// TODO(adamk): Add tests for objects with hidden prototypes
-// once we support observing the global object.
-Object.deliverChangeRecords(observer.callback);
-observer.assertCallbackRecords([
-  { object: obj, name: '__proto__', type: 'prototype',
-    oldValue: Object.prototype },
-  { object: obj, name: '__proto__', type: 'prototype', oldValue: p },
-  { object: obj, name: '__proto__', type: 'prototype', oldValue: null },
-]);
-
-// Function.prototype
-reset();
-var fun = function(){};
-Object.observe(fun, observer.callback);
-var myproto = {foo: 'bar'};
-fun.prototype = myproto;
-fun.prototype = 7;
-fun.prototype = 7;  // ignored
-Object.defineProperty(fun, 'prototype', {value: 8});
-Object.deliverChangeRecords(observer.callback);
-observer.assertRecordCount(3);
-// Manually examine the first record in order to test
-// lazy creation of oldValue
-assertSame(fun, observer.records[0].object);
-assertEquals('prototype', observer.records[0].name);
-assertEquals('updated', observer.records[0].type);
-// The only existing reference to the oldValue object is in this
-// record, so to test that lazy creation happened correctly
-// we compare its constructor to our function (one of the invariants
-// ensured when creating an object via AllocateFunctionPrototype).
-assertSame(fun, observer.records[0].oldValue.constructor);
-observer.records.splice(0, 1);
-observer.assertCallbackRecords([
-  { object: fun, name: 'prototype', type: 'updated', oldValue: myproto },
-  { object: fun, name: 'prototype', type: 'updated', oldValue: 7 },
-]);
-
-// Function.prototype should not be observable except on the object itself
-reset();
-var fun = function(){};
-var obj = { __proto__: fun };
-Object.observe(obj, observer.callback);
-obj.prototype = 7;
-Object.deliverChangeRecords(observer.callback);
-observer.assertNotCalled();
diff --git a/deps/v8/test/mjsunit/harmony/proxies-json.js b/deps/v8/test/mjsunit/harmony/proxies-json.js
deleted file mode 100644
index 539c5a84cb..0000000000
--- a/deps/v8/test/mjsunit/harmony/proxies-json.js
+++ /dev/null
@@ -1,178 +0,0 @@
-// Copyright 2012 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.
-
-// Flags: --harmony
-
-function testStringify(expected, object) {
-  // Test fast case that bails out to slow case.
-  assertEquals(expected, JSON.stringify(object));
-  // Test slow case.
-  assertEquals(expected, JSON.stringify(object, undefined, 0));
-}
-
-// Test serializing a proxy, function proxy and objects that contain them.
-var handler1 = {
-  get: function(target, name) {
-    return name.toUpperCase();
-  },
-  enumerate: function(target) {
-    return ['a', 'b', 'c'];
-  },
-  getOwnPropertyDescriptor: function(target, name) {
-    return { enumerable: true };
-  }
-}
-
-var proxy1 = Proxy.create(handler1);
-testStringify('{"a":"A","b":"B","c":"C"}', proxy1);
-
-var proxy_fun = Proxy.createFunction(handler1, function() { return 1; });
-testStringify(undefined, proxy_fun);
-testStringify('[1,null]', [1, proxy_fun]);
-
-var parent1a = { b: proxy1 };
-testStringify('{"b":{"a":"A","b":"B","c":"C"}}', parent1a);
-
-var parent1b = { a: 123, b: proxy1, c: true };
-testStringify('{"a":123,"b":{"a":"A","b":"B","c":"C"},"c":true}', parent1b);
-
-var parent1c = [123, proxy1, true];
-testStringify('[123,{"a":"A","b":"B","c":"C"},true]', parent1c);
-
-// Proxy with side effect.
-var handler2 = {
-  get: function(target, name) {
-    delete parent2.c;
-    return name.toUpperCase();
-  },
-  enumerate: function(target) {
-    return ['a', 'b', 'c'];
-  },
-  getOwnPropertyDescriptor: function(target, name) {
-    return { enumerable: true };
-  }
-}
-
-var proxy2 = Proxy.create(handler2);
-var parent2 = { a: "delete", b: proxy2, c: "remove" };
-var expected2 = '{"a":"delete","b":{"a":"A","b":"B","c":"C"}}';
-assertEquals(expected2, JSON.stringify(parent2));
-parent2.c = "remove";  // Revert side effect.
-assertEquals(expected2, JSON.stringify(parent2, undefined, 0));
-
-// Proxy with a get function that uses the first argument.
-var handler3 = {
-  get: function(target, name) {
-    if (name == 'valueOf') return function() { return "proxy" };
-    return name + "(" + target + ")";
-  },
-  enumerate: function(target) {
-    return ['a', 'b', 'c'];
-  },
-  getOwnPropertyDescriptor: function(target, name) {
-    return { enumerable: true };
-  }
-}
-
-var proxy3 = Proxy.create(handler3);
-var parent3 = { x: 123, y: proxy3 }
-testStringify('{"x":123,"y":{"a":"a(proxy)","b":"b(proxy)","c":"c(proxy)"}}',
-              parent3);
-
-// Empty proxy.
-var handler4 = {
-  get: function(target, name) {
-    return 0;
-  },
-  enumerate: function(target) {
-    return [];
-  },
-  getOwnPropertyDescriptor: function(target, name) {
-    return { enumerable: false };
-  }
-}
-
-var proxy4 = Proxy.create(handler4);
-testStringify('{}', proxy4);
-testStringify('{"a":{}}', { a: proxy4 });
-
-// Proxy that provides a toJSON function that uses this.
-var handler5 = {
-  get: function(target, name) {
-    if (name == 'z') return 97000;
-    return function(key) { return key.charCodeAt(0) + this.z; };
-  },
-  enumerate: function(target) {
-    return ['toJSON', 'z'];
-  },
-  getOwnPropertyDescriptor: function(target, name) {
-    return { enumerable: true };
-  }
-}
-
-var proxy5 = Proxy.create(handler5);
-testStringify('{"a":97097}', { a: proxy5 });
-
-// Proxy that provides a toJSON function that returns undefined.
-var handler6 = {
-  get: function(target, name) {
-    return function(key) { return undefined; };
-  },
-  enumerate: function(target) {
-    return ['toJSON'];
-  },
-  getOwnPropertyDescriptor: function(target, name) {
-    return { enumerable: true };
-  }
-}
-
-var proxy6 = Proxy.create(handler6);
-testStringify('[1,null,true]', [1, proxy6, true]);
-testStringify('{"a":1,"c":true}', {a: 1, b: proxy6, c: true});
-
-// Object containing a proxy that changes the parent's properties.
-var handler7 = {
-  get: function(target, name) {
-    delete parent7.a;
-    delete parent7.c;
-    parent7.e = "5";
-    return name.toUpperCase();
-  },
-  enumerate: function(target) {
-    return ['a', 'b', 'c'];
-  },
-  getOwnPropertyDescriptor: function(target, name) {
-    return { enumerable: true };
-  }
-}
-
-var proxy7 = Proxy.create(handler7);
-var parent7 = { a: "1", b: proxy7, c: "3", d: "4" };
-assertEquals('{"a":"1","b":{"a":"A","b":"B","c":"C"},"d":"4"}',
-             JSON.stringify(parent7));
-assertEquals('{"b":{"a":"A","b":"B","c":"C"},"d":"4","e":"5"}',
-             JSON.stringify(parent7));
diff --git a/deps/v8/test/mjsunit/harmony/proxies.js b/deps/v8/test/mjsunit/harmony/proxies.js
index 04fc76949e..7170ffd9c7 100644
--- a/deps/v8/test/mjsunit/harmony/proxies.js
+++ b/deps/v8/test/mjsunit/harmony/proxies.js
@@ -649,11 +649,6 @@ function TestSetForDerived2(create, trap) {
 
 TestSetForDerived(
   function(k) {
-    // TODO(yangguo): issue 2398 - throwing an error causes formatting of
-    // the message string, which can be observable through this handler.
-    // We ignore keys that occur when formatting the message string.
-    if (k == "toString" || k == "valueOf") return;
-
     key = k;
     switch (k) {
       case "p_writable": return {writable: true, configurable: true}