[proxies] Implement the Proxy constructor in C++ fully.

src/js/proxy.js

Index: src/js/proxy.js
diff --git a/src/js/proxy.js b/src/js/proxy.js
index d21029687136a8ef5b2029c1bde08dfc457dc432..2750d40e272f27d3b0a49a0897e25cfbacf2f649 100644
--- a/src/js/proxy.js
+++ b/src/js/proxy.js
@@ -15,22 +15,13 @@ var GlobalProxy = global.Proxy;
 var GlobalFunction = global.Function;
 var GlobalObject = global.Object;
 var MakeTypeError;
-var ToNameArray;
 
 utils.Import(function(from) {
   MakeTypeError = from.MakeTypeError;
-  ToNameArray = from.ToNameArray;
 });
 
 //----------------------------------------------------------------------------
 
-function ProxyCreate(target, handler) {
-  if (IS_UNDEFINED(new.target)) {
-    throw MakeTypeError(kConstructorNotFunction, "Proxy");
-  }
-  return %CreateJSProxy(target, handler);
-}
-
 function ProxyCreateFunction(handler, callTrap, constructTrap) {
   if (!IS_SPEC_OBJECT(handler))
     throw MakeTypeError(kProxyHandlerNonObject, "createFunction")
@@ -150,7 +141,6 @@ function ProxyEnumerate(trap, handler, target) {
 }
 
 //-------------------------------------------------------------------
-%SetCode(GlobalProxy, ProxyCreate);
 
 //Set up non-enumerable properties of the Proxy object.
 utils.InstallFunctions(GlobalProxy, DONT_ENUM, [