Use shared container to manage imports/exports.

src/proxy.js

 // Copyright 2011 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 $proxyDelegateCallAndConstruct;
 var $proxyDerivedGetTrap;
 var $proxyDerivedHasTrap;
 var $proxyDerivedHasOwnTrap;
 var $proxyDerivedKeysTrap;
 var $proxyDerivedSetTrap;
 var $proxyEnumerate;
 
-(function(global, shared, exports) {
+(function(global, utils) {
 
 "use strict";
 
 %CheckIsBootstrapping();
 
 var GlobalFunction = global.Function;
 var GlobalObject = global.Object;
 
 // -------------------------------------------------------------------
 
@@ skipping 168 matching lines @@
 
 $proxyDelegateCallAndConstruct = DelegateCallAndConstruct;
 $proxyDerivedGetTrap = DerivedGetTrap;
 $proxyDerivedHasTrap = DerivedHasTrap;
 $proxyDerivedHasOwnTrap = DerivedHasOwnTrap;
 $proxyDerivedKeysTrap = DerivedKeysTrap;
 $proxyDerivedSetTrap = DerivedSetTrap;
 $proxyEnumerate = ProxyEnumerate;
 
 })