Fix NamingTest on all Frog configurations

frog/lib/string_implementation.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 //String.prototype.get$length = function() {
 //  return this.length;
 //}
 
 // TODO(jimhug): Unify with code from compiler/lib/implementation.
 class StringImplementation implements String native "String" {
@@ skipping 30 matching lines @@
   // TODO(jmesserly): should support pattern too.
   bool contains(Pattern pattern, int startIndex) native
     "return this.indexOf(pattern, startIndex) >= 0;";
 
   String replaceFirst(Pattern from, String to) native
     "return this.replace(from, to);";
 
   String replaceAll(Pattern from, String to) native @"""
 if (typeof(from) == 'string' || from instanceof String) {
   from = new RegExp(from.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'g');
+  to = to.replace(/\$/g, '$$$$'); // Escape sequences are fun!

[jimhug, 2011/12/14 22:14:47]

I wanted to suggest that you use @'$$' to simplify this - but the I realized you
were in JS <smile>.

 }
 return this.replace(from, to);""";
 
   List<String> split(Pattern pattern) native;
 
   /*
   Iterable<Match> allMatches(String str) {
     List<Match> result = [];
     if (this.isEmpty()) return result;
     int length = this.length;
@@ skipping 68 matching lines @@
       result.add(group(g));
     }
     return result;
   }
 
   final int _start;
   final String str;
   final String pattern;
 }
 */