nsString& Append(const nsStr& aString)                    {return Append(aString,(PRInt32)aString.mLength);}
nsString& Append(const nsString& aString)                 {return Append(aString,(PRInt32)aString.mLength);}
  nsString& Append(const nsStr& aString)                    {return Append(aString,(PRInt32)aString.mLength);}