Regenerate pub sources.

sdk/lib/_internal/pub_generated/test/upgrade/report/highlights_overrides_test.dart

Index: sdk/lib/_internal/pub_generated/test/upgrade/report/highlights_overrides_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/upgrade/report/highlights_overrides_test.dart b/sdk/lib/_internal/pub_generated/test/upgrade/report/highlights_overrides_test.dart
index 9a940dd1a3b1d76efe3d728e9d117e87ab633ccd..4b567f4bec791c0bd676ccc8eb59c0c41f987f2f 100644
--- a/sdk/lib/_internal/pub_generated/test/upgrade/report/highlights_overrides_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/upgrade/report/highlights_overrides_test.dart
@@ -1,16 +1,25 @@
+// 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.
+
 library pub_tests;
+
 import '../../descriptor.dart' as d;
 import '../../test_pub.dart';
+
 main() {
   initConfig();
   integration("highlights overridden packages", () {
     servePackages((builder) => builder.serve("overridden", "1.0.0"));
+
     d.dir(appPath, [d.pubspec({
         "name": "myapp",
         "dependency_overrides": {
           "overridden": "any"
         }
       })]).create();
+
+    // Upgrade everything.
     pubUpgrade(output: new RegExp(r"""
 Resolving dependencies\.\.\..*
 ! overridden 1\.0\.0 \(overridden\)