Regenerate pub sources.

sdk/lib/_internal/pub_generated/test/build/outputs_error_to_json_test.dart

Index: sdk/lib/_internal/pub_generated/test/build/outputs_error_to_json_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/build/outputs_error_to_json_test.dart b/sdk/lib/_internal/pub_generated/test/build/outputs_error_to_json_test.dart
index b1a894ff37ace19ae51645a2e7eea2463d355124..38f42bdba04e9476594af0dd08e7ff90a18b2b5a 100644
--- a/sdk/lib/_internal/pub_generated/test/build/outputs_error_to_json_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/build/outputs_error_to_json_test.dart
@@ -1,8 +1,15 @@
+// Copyright (c) 2014, 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.
+
 library pub_tests;
+
 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';
+
 const TRANSFORMER = """
 import 'dart:async';
 
@@ -16,18 +23,24 @@ class RewriteTransformer extends Transformer {
   Future apply(Transform transform) => throw new Exception('oh no!');
 }
 """;
+
 main() {
   initConfig();
   withBarbackVersions("any", () {
     integration("outputs error to JSON in a failed build", () {
+      // Loading transformers takes several seconds, so make sure we don't
+      // timeout.
       currentSchedule.timeout *= 2;
+
       d.dir(appPath, [d.pubspec({
           "name": "myapp",
           "transformers": ["myapp"]
         }),
             d.dir("lib", [d.file("transformer.dart", TRANSFORMER)]),
             d.dir("web", [d.file("foo.txt", "foo")])]).create();
+
       createLockFile('myapp', pkg: ['barback']);
+
       schedulePub(args: ["build", "--format", "json"], outputJson: {
         "buildResult": "failure",
         "errors": [{