A first skeleton for introducing Harmony proxies

src/factory.h

Index: src/factory.h
===================================================================
--- src/factory.h	(revision 7800)
+++ src/factory.h	(working copy)
@@ -231,6 +231,8 @@
       Handle<FixedArray> elements,
       PretenureFlag pretenure = NOT_TENURED);
 
+  Handle<JSProxy> NewJSProxy(Handle<Object> handler, Handle<Object> prototype);
+
   Handle<JSFunction> NewFunction(Handle<String> name,
                                  Handle<Object> prototype);