nsReadableFragment<CharT> fragment; GetReadableFragment(fragment, kLastFragment); return nsReadingIterator<CharT>(fragment, fragment.mEnd, *this);
nsReadingIterator<CharT> result; return EndReading(result);
basic_nsAReadableString<CharT>::EndReading() const  {    nsReadableFragment<CharT> fragment;    GetReadableFragment(fragment, kLastFragment);    return nsReadingIterator<CharT>(fragment, fragment.mEnd, *this);  }