PRBool  operator!=( const basic_nsAReadableString<CharT>& rhs ) const { return Compare(rhs)!=0; }
NS_DEF_TEMPLATE_STRING_COMPARISON_OPERATORS(basic_nsLiteralString<CharT>, CharT)
      PRBool  operator!=( const basic_nsAReadableString<CharT>& rhs ) const { return Compare(rhs)!=0; }