Fix redefinition of aliased elements in arguments.

src/api.cc

 // Copyright 2012 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 2742 matching lines @@
   ON_BAILOUT(isolate, "v8::Object::Set()", return false);
   ENTER_V8(isolate);
   i::HandleScope scope(isolate);
   i::Handle<i::JSObject> self = Utils::OpenHandle(this);
   i::Handle<i::Object> value_obj = Utils::OpenHandle(*value);
   EXCEPTION_PREAMBLE(isolate);
   i::Handle<i::Object> obj = i::JSObject::SetElement(
       self,
       index,
       value_obj,
+      NONE,
       i::kNonStrictMode);
   has_pending_exception = obj.is_null();
   EXCEPTION_BAILOUT_CHECK(isolate, false);
   return true;
 }
 
 
 bool v8::Object::ForceSet(v8::Handle<Value> key,
                           v8::Handle<Value> value,
                           v8::PropertyAttribute attribs) {
@@ skipping 3414 matching lines @@
 
 
 char* HandleScopeImplementer::Iterate(ObjectVisitor* v, char* storage) {
   HandleScopeImplementer* scope_implementer =
       reinterpret_cast<HandleScopeImplementer*>(storage);
   scope_implementer->IterateThis(v);
   return storage + ArchiveSpacePerThread();
 }
 
 } }  // namespace v8::internal