Reformat untouched files.

tests/compiler/dart2js/compiler_helper.dart

 // Copyright (c) 2012, 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 compiler_helper;
 
 import 'dart:async';
 import "package:expect/expect.dart";
 
 import 'package:compiler/compiler_new.dart';
@@ skipping 289 matching lines @@
             "Must not find '$pattern' in:\n$generated");
       }
     }
   }
 
   return checker;
 }
 
 RegExp _directivePattern = new RegExp(
     //      \1                     \2        \3
-    r'''// *(present|absent): *(?:"([^"]*)"|'([^'']*)')''',
-    multiLine: true);
+    r'''// *(present|absent): *(?:"([^"]*)"|'([^'']*)')''', multiLine: true);