Regenerate pub sources.

sdk/lib/_internal/pub_generated/test/dart2js/compiles_generated_dart_file_test.dart

Index: sdk/lib/_internal/pub_generated/test/dart2js/compiles_generated_dart_file_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/dart2js/compiles_generated_dart_file_test.dart b/sdk/lib/_internal/pub_generated/test/dart2js/compiles_generated_dart_file_test.dart
index 4af573eb6ff42f92e2c42596f8b43016f1d2f382..0354e436ecc4b670a07a38ead80e690f81fa024e 100644
--- a/sdk/lib/_internal/pub_generated/test/dart2js/compiles_generated_dart_file_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/dart2js/compiles_generated_dart_file_test.dart
@@ -1,7 +1,13 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS d.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:scheduled_test/scheduled_test.dart';
+
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
 import '../serve/utils.dart';
+
 main() {
   initConfig();
   withBarbackVersions("any", () {
@@ -16,7 +22,9 @@ main() {
 const TOKEN = "before";
 void main() => print(TOKEN);
 """)])]).create();
+
       createLockFile('myapp', pkg: ['barback']);
+
       pubServe();
       requestShouldSucceed("main.dart.js", contains("(before, munge)"));
       endPubServe();