operator!=( const nsCOMPtr<T>& lhs, const U* rhs )
operator!=( const nsCOMPtr<T>& lhs, NSCAP_Zero* rhs )
operator!=( const nsCOMPtr<T>& lhs, const U* rhs )  {    return NSCAP_STATIC_CAST(const void*, lhs.get()) != NSCAP_STATIC_CAST(const void*, rhs);  }