Update utils to new library syntax.

utils/tests/peg/peg_test.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.
 
-#library("peg_tests");
-#import('../../peg/pegparser.dart');
+library peg_tests;
+import '../../peg/pegparser.dart';
 
 testParens() {
   Grammar g = new Grammar();
   Symbol a = g['A'];
 
   a.def = ['(', MANY(a, min:0), ')', (a) => a];
 
   check(g, a, "", null);
   check(g, a, "()", '[]');
   check(g, a, "(()())", '[[],[]]');
@@ skipping 321 matching lines @@
 }
 
 main() {
   testCODE();
   testParens();
   testOR();
   testTEXT();
   testBlockComment();
   testC();
 }