Get rid of all the library tags.

test/utils.dart

 // Copyright (c) 2015, 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 test.test.utils;
-
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:test/src/backend/declarer.dart';
 import 'package:test/src/backend/group.dart';
 import 'package:test/src/backend/group_entry.dart';
 import 'package:test/src/backend/invoker.dart';
 import 'package:test/src/backend/live_test.dart';
 import 'package:test/src/backend/metadata.dart';
 import 'package:test/src/backend/state.dart';
@@ skipping 289 matching lines @@
   return declarer.build().entries;
 }
 
 /// Runs [body] with a declarer and returns an engine that runs those tests.
 Engine declareEngine(void body()) {
   var declarer = new Declarer()..declare(body);
   return new Engine.withSuites([
     new RunnerSuite(const VMEnvironment(), declarer.build())
   ]);
 }