Install iterator meta objects via utils object.

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 Delete;
+var FLAG_harmony_tolength;
 var GlobalArray = global.Array;
 var InternalArray = utils.InternalArray;
 var InternalPackedArray = utils.InternalPackedArray;
 var MathMin;
 var ObjectHasOwnProperty;
 var ObjectIsFrozen;
 var ObjectIsSealed;
 var ObjectToString;
 var ObserveBeginPerformSplice;
 var ObserveEndPerformSplice;
 var ObserveEnqueueSpliceRecord;
 var unscopablesSymbol = utils.ImportNow("unscopables_symbol");
 
 utils.Import(function(from) {
   Delete = from.Delete;
   MathMin = from.MathMin;
   ObjectHasOwnProperty = from.ObjectHasOwnProperty;
   ObjectIsFrozen = from.ObjectIsFrozen;
   ObjectIsSealed = from.ObjectIsSealed;
   ObjectToString = from.ObjectToString;
   ObserveBeginPerformSplice = from.ObserveBeginPerformSplice;
   ObserveEndPerformSplice = from.ObserveEndPerformSplice;
   ObserveEnqueueSpliceRecord = from.ObserveEnqueueSpliceRecord;
 });
 
+utils.ImportFromExperimental(function(from) {
+  FLAG_harmony_tolength = from.FLAG_harmony_tolength;
+});
+
 // -------------------------------------------------------------------
 
 // Global list of arrays visited during toString, toLocaleString and
 // join invocations.
 var visited_arrays = new InternalArray();
 
 
 // Gets a sorted array of array keys.  Useful for operations on sparse
 // arrays.  Dupes have not been removed.
 function GetSortedArrayKeys(array, indices) {
@@ skipping 1617 matching lines @@
 %InstallToContext([
   "array_pop", ArrayPop,
   "array_push", ArrayPush,
   "array_shift", ArrayShift,
   "array_splice", ArraySplice,
   "array_slice", ArraySlice,
   "array_unshift", ArrayUnshift,
 ]);
 
 });