Fixed global object leak

test/cctest/test-decls.cc

 // Copyright 2007-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 630 matching lines @@
  protected:
   virtual v8::Handle<Integer> Query(Local<String> key) {
     // Let it seem that the property exists in the hidden prototype object.
     return Integer::New(v8::None);
   }
 
   // Install the hidden prototype after the global object has been created.
   virtual void PostInitializeContext(Handle<Context> context) {
     Local<Object> global_object = context->Global();
     Local<Object> hidden_proto = hidden_proto_->GetFunction()->NewInstance();
-    context->DetachGlobal();
-    context->Global()->SetPrototype(hidden_proto);
-    context->ReattachGlobal(global_object);
+    Local<Object> inner_global =
+        Local<Object>::Cast(global_object->GetPrototype());
+    inner_global->SetPrototype(hidden_proto);
   }
 
   // Use the hidden prototype as the holder for the interceptors.
   virtual Local<ObjectTemplate> GetHolder(Local<FunctionTemplate> function) {
     return hidden_proto_->InstanceTemplate();
   }
 
  private:
   Local<FunctionTemplate> hidden_proto_;
 };
@@ skipping 192 matching lines @@
       SimpleContext context;
       context.Check(firsts[i], EXPECT_RESULT, Number::New(1));
       // TODO(rossberg): All tests should actually be errors in Harmony,
       // but we currently do not detect the cases where the first declaration
       // is not lexical.
       context.Check(seconds[j],
                     i < 2 ? EXPECT_RESULT : EXPECT_ERROR, Number::New(2));
     }
   }
 }