Make sure the main header is not included twice in the generated implementation

Source/bindings/tests/results/V8TestObj.cpp

 /*
     This file is part of the Blink open source project.
     This file has been auto-generated by CodeGeneratorV8.pm. DO NOT MODIFY!
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
     This library is distributed in the hope that it will be useful,
@@ skipping 15 matching lines @@
 #include "ScriptProfile.h"
 #include "V8DOMStringList.h"
 #include "V8Document.h"
 #include "V8Float32Array.h"
 #include "V8Node.h"
 #include "V8SVGDocument.h"
 #include "V8SVGPoint.h"
 #include "V8ScriptProfile.h"
 #include "V8TestCallback.h"
 #include "V8TestNode.h"
-#include "V8TestObj.h"
 #include "V8TestSubObj.h"
 #include "V8bool.h"
 #include "bindings/v8/Dictionary.h"
 #include "bindings/v8/ScriptController.h"
 #include "bindings/v8/ScriptValue.h"
 #include "bindings/v8/SerializedScriptValue.h"
 #include "bindings/v8/V8Binding.h"
 #include "bindings/v8/V8DOMActivityLogger.h"
 #include "bindings/v8/V8DOMWrapper.h"
 #include "bindings/v8/V8EventListenerList.h"
@@ skipping 4428 matching lines @@
     installPerContextProperties(wrapper, impl.get(), isolate);
     V8DOMWrapper::associateObjectWithWrapper(impl, &info, wrapper, isolate, hasDependentLifetime ? WrapperConfiguration::Dependent : WrapperConfiguration::Independent);
     return wrapper;
 }
 void V8TestObj::derefObject(void* object)
 {
     static_cast<TestObj*>(object)->deref();
 }
 
 } // namespace WebCore