Revert of Revert of Hook up more import/exports in natives.

src/weak-collection.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) {
 
 "use strict";
 
 %CheckIsBootstrapping();
 
@@ skipping 70 matching lines @@
 
 %SetCode(GlobalWeakMap, WeakMapConstructor);
 %FunctionSetLength(GlobalWeakMap, 0);
 %FunctionSetPrototype(GlobalWeakMap, new GlobalObject());
 %AddNamedProperty(GlobalWeakMap.prototype, "constructor", GlobalWeakMap,
                   DONT_ENUM);
 %AddNamedProperty(GlobalWeakMap.prototype, symbolToStringTag, "WeakMap",
                   DONT_ENUM | READ_ONLY);
 
 // Set up the non-enumerable functions on the WeakMap prototype object.
-$installFunctions(GlobalWeakMap.prototype, DONT_ENUM, [
+utils.InstallFunctions(GlobalWeakMap.prototype, DONT_ENUM, [
   "get", WeakMapGet,
   "set", WeakMapSet,
   "has", WeakMapHas,
   "delete", WeakMapDelete
 ]);
 
 // -------------------------------------------------------------------
 // Harmony WeakSet
 
 function WeakSetConstructor(iterable) {
@@ skipping 49 matching lines @@
 
 %SetCode(GlobalWeakSet, WeakSetConstructor);
 %FunctionSetLength(GlobalWeakSet, 0);
 %FunctionSetPrototype(GlobalWeakSet, new GlobalObject());
 %AddNamedProperty(GlobalWeakSet.prototype, "constructor", GlobalWeakSet,
                  DONT_ENUM);
 %AddNamedProperty(GlobalWeakSet.prototype, symbolToStringTag, "WeakSet",
                   DONT_ENUM | READ_ONLY);
 
 // Set up the non-enumerable functions on the WeakSet prototype object.
-$installFunctions(GlobalWeakSet.prototype, DONT_ENUM, [
+utils.InstallFunctions(GlobalWeakSet.prototype, DONT_ENUM, [
   "add", WeakSetAdd,
   "has", WeakSetHas,
   "delete", WeakSetDelete
 ]);
 
 })