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

sdk/lib/_internal/pub_generated/test/dart2js/ignores_non_entrypoint_dart_files_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 '../descriptor.dart' as d;
 import '../test_pub.dart';
 import '../serve/utils.dart';
 
 main() {
   initConfig();
   setUp(() {
-    d.dir(appPath, [
-      d.appPubspec(),
-      d.dir('web', [
-        d.file('file1.dart', 'var main = () => print("hello");'),
-        d.file('file2.dart', 'void main(arg1, arg2, arg3) => print("hello");'),
-        d.file('file3.dart', 'class Foo { void main() => print("hello"); }'),
-        d.file('file4.dart', 'var foo;')
-      ])
-    ]).create();
+    d.dir(
+        appPath,
+        [
+            d.appPubspec(),
+            d.dir(
+                'web',
+                [
+                    d.file('file1.dart', 'var main = () => print("hello");'),
+                    d.file('file2.dart', 'void main(arg1, arg2, arg3) => print("hello");'),
+                    d.file('file3.dart', 'class Foo { void main() => print("hello"); }'),
+                    d.file('file4.dart', 'var foo;')])]).create();
   });
 
   integration("build ignores non-entrypoint Dart files", () {
-    schedulePub(args: ["build"],
+    schedulePub(
+        args: ["build"],
         output: new RegExp(r'Built 0 files to "build".'));
 
-    d.dir(appPath, [
-      d.dir('build', [
-        d.nothing('web')
-      ])
-    ]).validate();
+    d.dir(appPath, [d.dir('build', [d.nothing('web')])]).validate();
   });
 
   integration("serve ignores non-entrypoint Dart files", () {
     pubServe();
     requestShould404("file1.dart.js");
     requestShould404("file2.dart.js");
     requestShould404("file3.dart.js");
     requestShould404("file4.dart.js");
     endPubServe();
   });
 
 }