nsString& Assign(const char* aString,PRInt32 aCount=-1)       { AssignWithConversion(aString, aCount); return *this; }
nsString& Assign(char aChar)                                  { AssignWithConversion(aChar); return *this; }
  nsString& Assign(const char* aString,PRInt32 aCount=-1)       { AssignWithConversion(aString, aCount); return *this; }