Fix v8::Object::DeleteHiddenValue to not bail when there are no hidden proper...

src/api.cc

 // Copyright 2009 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 2059 matching lines @@
     return v8::Local<v8::Value>();
   }
   return Utils::ToLocal(result);
 }
 
 
 bool v8::Object::DeleteHiddenValue(v8::Handle<v8::String> key) {
   ON_BAILOUT("v8::DeleteHiddenValue()", return false);
   ENTER_V8;
   i::Handle<i::JSObject> self = Utils::OpenHandle(this);
-  i::Handle<i::JSObject> hidden_props(
-      i::JSObject::cast(*i::GetHiddenProperties(self, false)));
+  i::Handle<i::Object> hidden_props(i::GetHiddenProperties(self, false));
   if (hidden_props->IsUndefined()) {
-    return false;
+    return true;
   }
+  i::Handle<i::JSObject> js_obj(i::JSObject::cast(*hidden_props));
   i::Handle<i::String> key_obj = Utils::OpenHandle(*key);
-  return i::DeleteProperty(hidden_props, key_obj)->IsTrue();
+  return i::DeleteProperty(js_obj, key_obj)->IsTrue();
 }
 
 
 Local<v8::Object> Function::NewInstance() const {
   return NewInstance(0, NULL);
 }
 
 
 Local<v8::Object> Function::NewInstance(int argc,
                                         v8::Handle<v8::Value> argv[]) const {
@@ skipping 1242 matching lines @@
       reinterpret_cast<HandleScopeImplementer*>(storage);
   List<void**>* blocks_of_archived_thread = thread_local->Blocks();
   v8::ImplementationUtilities::HandleScopeData* handle_data_of_archived_thread =
       &thread_local->handle_scope_data_;
   Iterate(v, blocks_of_archived_thread, handle_data_of_archived_thread);
 
   return storage + ArchiveSpacePerThread();
 }
 
 } }  // namespace v8::internal