Use function wrapper argument to expose internal arrays to native scripts.

src/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.
 
 var $arrayConcat;
 var $arrayJoin;
 var $arrayPush;
 var $arrayPop;
 var $arrayShift;
 var $arraySlice;
 var $arraySplice;
 var $arrayUnshift;
 
 (function(global, shared, exports) {
 
 "use strict";
 
 %CheckIsBootstrapping();
 
+// -------------------------------------------------------------------
+// Imports
+
 var GlobalArray = global.Array;
+var InternalArray = exports.InternalArray;
+var InternalPackedArray = exports.InternalPackedArray;
 
 // -------------------------------------------------------------------
 
 // 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.
@@ skipping 1558 matching lines @@
 $arrayConcat = ArrayConcatJS;
 $arrayJoin = ArrayJoin;
 $arrayPush = ArrayPush;
 $arrayPop = ArrayPop;
 $arrayShift = ArrayShift;
 $arraySlice = ArraySlice;
 $arraySplice = ArraySplice;
 $arrayUnshift = ArrayUnshift;
 
 })