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

sdk/lib/_internal/pub_generated/test/dart2js/reports_dart_parse_errors_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:path/path.dart' as p;
 import 'package:scheduled_test/scheduled_test.dart';
 import 'package:scheduled_test/scheduled_stream.dart';
 
 import '../../lib/src/exit_codes.dart' as exit_codes;
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
 
 main() {
   initConfig();
   integration("reports Dart parse errors", () {
     // Dart2js can take a long time to compile dart code, so we increase the
     // timeout to cope with that.
     currentSchedule.timeout *= 3;
 
-    d.dir(appPath, [
-      d.appPubspec(),
-      d.dir('web', [
-        d.file('file.txt', 'contents'),
-        d.file('file.dart', 'void void;'),
-        d.dir('subdir', [
-          d.file('subfile.dart', 'void void;')
-        ])
-      ])
-    ]).create();
+    d.dir(
+        appPath,
+        [
+            d.appPubspec(),
+            d.dir(
+                'web',
+                [
+                    d.file('file.txt', 'contents'),
+                    d.file('file.dart', 'void void;'),
+                    d.dir('subdir', [d.file('subfile.dart', 'void void;')])])]).create();
 
     var pub = startPub(args: ["build"]);
     pub.stdout.expect(startsWith("Loading source assets..."));
     pub.stdout.expect(startsWith("Building myapp..."));
 
-    var consumeFile = consumeThrough(inOrder([
-      "[Error from Dart2JS]:",
-      startsWith(p.join("web", "file.dart") + ":")
-    ]));
-    var consumeSubfile = consumeThrough(inOrder([
-      "[Error from Dart2JS]:",
-      startsWith(p.join("web", "subdir", "subfile.dart") + ":")
-    ]));
+    var consumeFile = consumeThrough(
+        inOrder(
+            ["[Error from Dart2JS]:", startsWith(p.join("web", "file.dart") + ":")]));
+    var consumeSubfile = consumeThrough(
+        inOrder(
+            [
+                "[Error from Dart2JS]:",
+                startsWith(p.join("web", "subdir", "subfile.dart") + ":")]));
 
     // It's nondeterministic what order the dart2js transformers start running,
     // so we allow the error messages to be emitted in either order.
-    pub.stderr.expect(either(
-        inOrder([consumeFile, consumeSubfile]),
-        inOrder([consumeSubfile, consumeFile])));
+    pub.stderr.expect(
+        either(
+            inOrder([consumeFile, consumeSubfile]),
+            inOrder([consumeSubfile, consumeFile])));
 
     pub.shouldExit(exit_codes.DATA);
 
     // Doesn't output anything if an error occurred.
-    d.dir(appPath, [
-      d.dir('build', [
-        d.nothing('web')
-      ])
-    ]).validate();
+    d.dir(appPath, [d.dir('build', [d.nothing('web')])]).validate();
   });
 }