Regenerate pub sources.

sdk/lib/_internal/pub_generated/test/barback/fails_on_all_with_no_buildable_directories_test.dart

Index: sdk/lib/_internal/pub_generated/test/barback/fails_on_all_with_no_buildable_directories_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/barback/fails_on_all_with_no_buildable_directories_test.dart b/sdk/lib/_internal/pub_generated/test/barback/fails_on_all_with_no_buildable_directories_test.dart
index df675aa7adbc53b422c3f14885bd972b1bb21048..d88fc9647ecd3870d9237fc7c26d32f29a917d9f 100644
--- a/sdk/lib/_internal/pub_generated/test/barback/fails_on_all_with_no_buildable_directories_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/barback/fails_on_all_with_no_buildable_directories_test.dart
@@ -1,13 +1,21 @@
+// 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:scheduled_test/scheduled_test.dart';
+
 import '../../lib/src/exit_codes.dart' as exit_codes;
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
 import 'utils.dart';
+
 main() {
   initConfig();
+
   setUp(() {
     d.appDir().create();
   });
+
   pubBuildAndServeShouldFail(
       "on --all with no default source directories",
       args: ["--all"],