Update all tests

tests/corelib/print_test.dart

 // Copyright (c) 2013, 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.
 
 import 'package:expect/expect.dart';
 
 class A {
   toString() {
     if (false
-          || true  /// 01: runtime error
+          || true  //# 01: runtime error
         ) {
       return 499;
     } else {
       return "ok";
     }
   }
 }
 
 main() {
   print(new A());
 }