[builtins] Support SameValue and SameValueZero via runtime functions.

src/js/array.js

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 (function(global, utils, extrasUtils) {
 
 "use strict";
 
 %CheckIsBootstrapping();
 
 // -------------------------------------------------------------------
 // Imports
 
 var AddIndexedProperty;
 var FLAG_harmony_species;
 var GetIterator;
 var GetMethod;
 var GlobalArray = global.Array;
 var InternalArray = utils.InternalArray;
 var InternalPackedArray = utils.InternalPackedArray;
 var MakeTypeError;
 var MaxSimple;
 var MinSimple;
 var ObjectDefineProperty;
 var ObjectHasOwnProperty;
 var ObjectToString = utils.ImportNow("object_to_string");
 var ObserveBeginPerformSplice;
 var ObserveEndPerformSplice;
 var ObserveEnqueueSpliceRecord;
-var SameValueZero;
 var iteratorSymbol = utils.ImportNow("iterator_symbol");
 var unscopablesSymbol = utils.ImportNow("unscopables_symbol");
 
 utils.Import(function(from) {
   AddIndexedProperty = from.AddIndexedProperty;
   GetIterator = from.GetIterator;
   GetMethod = from.GetMethod;
   MakeTypeError = from.MakeTypeError;
   MaxSimple = from.MaxSimple;
   MinSimple = from.MinSimple;
   ObjectDefineProperty = from.ObjectDefineProperty;
   ObjectHasOwnProperty = from.ObjectHasOwnProperty;
   ObserveBeginPerformSplice = from.ObserveBeginPerformSplice;
   ObserveEndPerformSplice = from.ObserveEndPerformSplice;
   ObserveEnqueueSpliceRecord = from.ObserveEnqueueSpliceRecord;
-  SameValueZero = from.SameValueZero;
 });
 
 utils.ImportFromExperimental(function(from) {
   FLAG_harmony_species = from.FLAG_harmony_species;
 });
 
 // -------------------------------------------------------------------
 
 
 function ArraySpeciesCreate(array, length) {
@@ skipping 1660 matching lines @@
     k = n;
   } else {
     k = length + n;
     if (k < 0) {
       k = 0;
     }
   }
 
   while (k < length) {
     var elementK = array[k];
-    if (SameValueZero(searchElement, elementK)) {
+    if (%SameValueZero(searchElement, elementK)) {
       return true;
     }
 
     ++k;
   }
 
   return false;
 }
 
 
@@ skipping 223 matching lines @@
 %InstallToContext([
   "array_pop", ArrayPop,
   "array_push", ArrayPush,
   "array_shift", ArrayShift,
   "array_splice", ArraySplice,
   "array_slice", ArraySlice,
   "array_unshift", ArrayUnshift,
 ]);
 
 });