FindInReadable( const nsAReadableString& aPattern, nsReadingIterator<PRUnichar>& aSearchStart, nsReadingIterator<PRUnichar>& aSearchEnd )
FindInReadable( const nsAString& aPattern, nsReadingIterator<PRUnichar>& aSearchStart, nsReadingIterator<PRUnichar>& aSearchEnd )
FindInReadable( const nsAReadableString& aPattern, nsReadingIterator<PRUnichar>& aSearchStart, nsReadingIterator<PRUnichar>& aSearchEnd )  {    return FindInReadable_Impl(aPattern, aSearchStart, aSearchEnd);  }