return (aFragment.mFragmentIdentifier & mFragmentIdentifierMask) ? kRightString : kLeftString;
return (NS_REINTERPRET_CAST(PRUint32, aFragment.mFragmentIdentifier) & mFragmentIdentifierMask) ? kRightString : kLeftString;
      GetCurrentStringFromFragment( const nsReadableFragment<CharT>& aFragment ) const        {          return (aFragment.mFragmentIdentifier & mFragmentIdentifierMask) ? kRightString : kLeftString;        }