Stop including main header twice in generated implementation code

Source/bindings/tests/results/V8TestTypedefs.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 10 matching lines @@
 #include "config.h"
 #include "V8TestTypedefs.h"
 
 #include "RuntimeEnabledFeatures.h"
 #include "SerializedScriptValue.h"
 #include "V8DOMStringList.h"
 #include "V8SVGPoint.h"
 #include "V8SerializedScriptValue.h"
 #include "V8TestCallback.h"
 #include "V8TestSubObj.h"
-#include "V8TestTypedefs.h"
 #include "bindings/v8/ScriptController.h"
 #include "bindings/v8/SerializedScriptValue.h"
 #include "bindings/v8/V8Binding.h"
 #include "bindings/v8/V8DOMWrapper.h"
 #include "core/dom/ContextFeatures.h"
 #include "core/dom/DOMStringList.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/page/Frame.h"
 #include "core/svg/properties/SVGPropertyTearOff.h"
 #include "wtf/UnusedParam.h"
@@ skipping 548 matching lines @@
     installPerContextProperties(wrapper, impl.get(), isolate);
     V8DOMWrapper::associateObjectWithWrapper(impl, &info, wrapper, isolate, hasDependentLifetime ? WrapperConfiguration::Dependent : WrapperConfiguration::Independent);
     return wrapper;
 }
 void V8TestTypedefs::derefObject(void* object)
 {
     static_cast<TestTypedefs*>(object)->deref();
 }
 
 } // namespace WebCore