Revert "Use native async/await support in pub."

sdk/lib/_internal/pub_generated/test/barback/directory_args_test.dart

 // 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.
 
 import 'package:scheduled_test/scheduled_test.dart';
 
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
 import '../serve/utils.dart';
 
 main() {
   initConfig();
 
   setUp(() {
-    d.dir(appPath, [
-      d.appPubspec(),
-      d.dir('bar', [d.file('file.txt', 'bar')]),
-      d.dir('foo', [d.file('file.txt', 'foo')]),
-      d.dir('test', [d.file('file.txt', 'test')]),
-      d.dir('web', [d.file('file.txt', 'web')])
-    ]).create();
+    d.dir(
+        appPath,
+        [
+            d.appPubspec(),
+            d.dir('bar', [d.file('file.txt', 'bar')]),
+            d.dir('foo', [d.file('file.txt', 'foo')]),
+            d.dir('test', [d.file('file.txt', 'test')]),
+            d.dir('web', [d.file('file.txt', 'web')])]).create();
   });
 
   integration("builds only the given directories", () {
-    schedulePub(args: ["build", "foo", "bar"],
+    schedulePub(
+        args: ["build", "foo", "bar"],
         output: new RegExp(r'Built 2 files to "build".'));
 
-    d.dir(appPath, [
-      d.dir('build', [
-        d.dir('bar', [
-          d.file('file.txt', 'bar')
-        ]),
-        d.dir('foo', [
-          d.file('file.txt', 'foo')
-        ]),
-        d.nothing('test'),
-        d.nothing('web')
-      ])
-    ]).validate();
+    d.dir(
+        appPath,
+        [
+            d.dir(
+                'build',
+                [
+                    d.dir('bar', [d.file('file.txt', 'bar')]),
+                    d.dir('foo', [d.file('file.txt', 'foo')]),
+                    d.nothing('test'),
+                    d.nothing('web')])]).validate();
   });
 
   integration("serves only the given directories", () {
     pubServe(args: ["foo", "bar"]);
 
     requestShouldSucceed("file.txt", "bar", root: "bar");
     requestShouldSucceed("file.txt", "foo", root: "foo");
     expectNotServed("test");
     expectNotServed("web");
 
     endPubServe();
   });
 }