Regenerate pub sources.

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

Index: sdk/lib/_internal/pub_generated/test/upgrade/report/describes_change_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/upgrade/report/describes_change_test.dart b/sdk/lib/_internal/pub_generated/test/upgrade/report/describes_change_test.dart
index b37ecc186cd57c594a6c6d4b11813bd7737740b2..45eace94e581a1a25d28f49d54ec449611fc447d 100644
--- a/sdk/lib/_internal/pub_generated/test/upgrade/report/describes_change_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/upgrade/report/describes_change_test.dart
@@ -1,6 +1,12 @@
+// 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("shows how package changed from previous lockfile", () {
@@ -10,19 +16,24 @@ main() {
       builder.serve("version_changed", "2.0.0");
       builder.serve("source_changed", "1.0.0");
     });
+
     d.dir(
         "source_changed",
         [d.libDir("source_changed"), d.libPubspec("source_changed", "2.0.0")]).create();
+
     d.dir(
         "description_changed_1",
         [
             d.libDir("description_changed"),
             d.libPubspec("description_changed", "1.0.0")]).create();
+
     d.dir(
         "description_changed_2",
         [
             d.libDir("description_changed"),
             d.libPubspec("description_changed", "1.0.0")]).create();
+
+    // Create the first lockfile.
     d.appDir({
       "unchanged": "any",
       "version_changed": "1.0.0",
@@ -31,7 +42,10 @@ main() {
         "path": "../description_changed_1"
       }
     }).create();
+
     pubGet();
+
+    // Change the pubspec.
     d.appDir({
       "unchanged": "any",
       "version_changed": "any",
@@ -42,6 +56,8 @@ main() {
         "path": "../description_changed_2"
       }
     }).create();
+
+    // Upgrade everything.
     pubUpgrade(output: new RegExp(r"""
 Resolving dependencies\.\.\..*
 . description_changed 1\.0\.0 from path \.\.[/\\]description_changed_2 \(was 1\.0\.0 from path \.\.[/\\]description_changed_1\)