Remove trailing spaces from js files.

src/regexp.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 279 matching lines @@
   }
 
   var lastIndex = this.lastIndex;
 
   var cache = regExpCache;
   if (%_ObjectEquals(cache.type, 'test') &&
       %_IsRegExpEquivalent(cache.regExp, this) &&
       %_ObjectEquals(cache.subject, string) &&
       %_ObjectEquals(0, lastIndex)) {
     // The regexp.lastIndex value must be 0 for non-global RegExps, and for
-    // global RegExps we only cache negative results, which gives a resulting 
+    // global RegExps we only cache negative results, which gives a resulting
     // lastIndex of zero as well.
     if (global) this.lastIndex = 0;
     return cache.answer;
   }
 
   var s;
   if (IS_STRING(string)) {
     s = string;
   } else {
     s = ToString(string);
@@ skipping 250 matching lines @@
   %DefineAccessor($RegExp, "$'", SETTER, NoOpSetter, DONT_ENUM | DONT_DELETE);
 
   for (var i = 1; i < 10; ++i) {
     %DefineAccessor($RegExp, '$' + i, GETTER, RegExpMakeCaptureGetter(i), DONT_DELETE);
     %DefineAccessor($RegExp, '$' + i, SETTER, NoOpSetter, DONT_DELETE);
   }
 }
 
 
 SetupRegExp();