Introduce code flushing of RegExp code.

src/string.js

 // Copyright 2006-2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 258 matching lines @@
   builder.addSpecialSlice(end, subject.length);
 
   return builder.generate();
 }
 
 
 // Expand the $-expressions in the string and return a new string with
 // the result.
 function ExpandReplacement(string, subject, matchInfo, builder) {
   var length = string.length;
-  var builder_elements = builder.elements; 
+  var builder_elements = builder.elements;
   var next = %StringIndexOf(string, '$', 0);
   if (next < 0) {
     if (length > 0) builder_elements.push(string);
     return;
   }
 
   // Compute the number of captures; see ECMA-262, 15.5.4.11, p. 102.
   var m = NUMBER_OF_CAPTURES(matchInfo) >> 1;  // Includes the match.
 
   if (next > 0) builder_elements.push(SubString(string, 0, next));
@@ skipping 700 matching lines @@
     "italics", StringItalics,
     "small", StringSmall,
     "strike", StringStrike,
     "sub", StringSub,
     "sup", StringSup
   ));
 }
 
 
 SetupString();