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

sdk/lib/_internal/pub_generated/test/validator/executable_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 '../../lib/src/entrypoint.dart';
 import '../../lib/src/validator.dart';
 import '../../lib/src/validator/executable.dart';
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
 import 'utils.dart';
 
 Validator executable(Entrypoint entrypoint) =>
-  new ExecutableValidator(entrypoint);
+    new ExecutableValidator(entrypoint);
 
 main() {
   initConfig();
 
   setUp(d.validPackage.create);
 
   group('should consider a package valid if it', () {
     integration('has executables that are present', () {
-      d.dir(appPath, [
-        d.pubspec({
+      d.dir(appPath, [d.pubspec({
           "name": "test_pkg",
           "version": "1.0.0",
           "executables": {
             "one": "one_script",
             "two": null
           }
         }),
-        d.dir("bin", [
-          d.file("one_script.dart", "main() => print('ok');"),
-          d.file("two.dart", "main() => print('ok');")
-        ])
-      ]).create();
+            d.dir(
+                "bin",
+                [
+                    d.file("one_script.dart", "main() => print('ok');"),
+                    d.file("two.dart", "main() => print('ok');")])]).create();
       expectNoValidationError(executable);
     });
   });
 
   group("should consider a package invalid if it", () {
     integration('is missing one or more listed executables', () {
-      d.dir(appPath, [
-        d.pubspec({
+      d.dir(appPath, [d.pubspec({
           "name": "test_pkg",
           "version": "1.0.0",
           "executables": {
             "nope": "not_there",
             "nada": null
           }
-        })
-      ]).create();
+        })]).create();
       expectValidationWarning(executable);
     });
   });
 }