Regenerate pub sources.

sdk/lib/_internal/pub_generated/test/cache/add/bad_version_test.dart

Index: sdk/lib/_internal/pub_generated/test/cache/add/bad_version_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/cache/add/bad_version_test.dart b/sdk/lib/_internal/pub_generated/test/cache/add/bad_version_test.dart
index 3f4963bedf3a820030b993647e474566d92e0476..3429031f438bd5417791744455ef589793dffcaa 100644
--- a/sdk/lib/_internal/pub_generated/test/cache/add/bad_version_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/cache/add/bad_version_test.dart
@@ -1,6 +1,12 @@
+// Copyright (c) 2014, 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 pub_tests;
+
 import '../../../lib/src/exit_codes.dart' as exit_codes;
 import '../../test_pub.dart';
+
 main() {
   initConfig();
   integration('fails if the version constraint cannot be parsed', () {