nsXBLPrototypeBinding::GetConstructor() { if (mImplementation) return mImplementation->mConstructor;  return nsnull; }
NS_IMETHOD GetConstructor(nsIXBLPrototypeHandler** aResult) { *aResult = mConstructor; NS_IF_ADDREF(*aResult); return NS_OK; };
nsXBLPrototypeBinding::GetConstructor(){  if (mImplementation)    return mImplementation->mConstructor;  return nsnull;}