bug 127091 - big string cleanup, removing old APIs

- removing Assign/AppendWithConversion for single-characters
- removing unused StripChars
- removing ReplaceChar[s] for non-matching chars
- removing CompressSet
- removing nsCString::Find/FindCharInSet/RFind for unichar strings
- removing lots of EqualsWithConversion
r=dp, sr=jag
a=asa


git-svn-id: svn://10.0.0.236/trunk@115750 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/parser/htmlparser/tests/outsinks/Convert.cpp

@@ -60,7 +60,7 @@ Compare(nsString& str, nsString& aFileName)
   int different = 0;
   while ((c = getc(file)) != EOF)
   {
-    inString.AppendWithConversion((char)c);
+    inString.Append(PRUnichar(c));
     // CVS isn't doing newline comparisons on these files for some reason.
     // So compensate for possible newline problems in the CVS file:
     if (c == '\n' && str[index] == '\r')
@@ -301,7 +301,7 @@ Usage: %s [-i intype] [-o outtype] [-f flags] [-w wrapcol] [-c comparison_file]
   nsString inString;
   int c;
   while ((c = getc(file)) != EOF)
-    inString.AppendWithConversion((char)c);
+    inString.Append(PRUnichar(c));
 
   if (file != stdin)
     fclose(file);