Use native async/await support in pub.

sdk/lib/_internal/pub_generated/test/cache/repair/handles_corrupted_binstub_test.dart

Index: sdk/lib/_internal/pub_generated/test/cache/repair/handles_corrupted_binstub_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/cache/repair/handles_corrupted_binstub_test.dart b/sdk/lib/_internal/pub_generated/test/cache/repair/handles_corrupted_binstub_test.dart
deleted file mode 100644
index 51c4deb2227f801bb21b559e6cc19f6c8f52d0cd..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/pub_generated/test/cache/repair/handles_corrupted_binstub_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// 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.
-
-library pub_tests;
-
-import 'dart:io';
-
-import 'package:scheduled_test/scheduled_test.dart';
-
-import '../../descriptor.dart' as d;
-import '../../test_pub.dart';
-
-main() {
-  initConfig();
-  integration('handles a corrupted binstub script', () {
-    servePackages((builder) {
-      builder.serve(
-          "foo",
-          "1.0.0",
-          contents: [
-              d.dir("bin", [d.file("script.dart", "main(args) => print('ok');")])]);
-    });
-
-    schedulePub(args: ["global", "activate", "foo"]);
-
-    d.dir(
-        cachePath,
-        [d.dir('bin', [d.file(binStubName('script'), 'junk')])]).create();
-
-    schedulePub(
-        args: ["cache", "repair"],
-        error: contains('Error reading binstub for "script":'));
-  });
-}