Store the async-await compiled pub code directly in the repo.

sdk/lib/_internal/pub_generated/test/lish/package_creation_provides_invalid_json_test.dart

-// 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 'package:scheduled_test/scheduled_server.dart';
 import 'package:shelf/shelf.dart' as shelf;
-
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
 import 'utils.dart';
-
 main() {
   initConfig();
   setUp(d.validPackage.create);
-
   integration('package creation provides invalid JSON', () {
     var server = new ScheduledServer();
     d.credentialsFile(server, 'access token').create();
     var pub = startPublish(server);
-
     confirmPublish(pub);
     handleUploadForm(server);
     handleUpload(server);
-
     server.handle('GET', '/create', (request) {
       return new shelf.Response.ok('{not json');
     });
-
-    pub.stderr.expect(emitsLines(
-        'Invalid server response:\n'
-        '{not json'));
+    pub.stderr.expect(emitsLines('Invalid server response:\n' '{not json'));
     pub.shouldExit(1);
   });
 }