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

sdk/lib/_internal/pub_generated/test/get/git/check_out_unfetched_revision_of_cached_repo_test.dart

 // Copyright (c) 2012, 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 'package:path/path.dart' as p;
 import 'package:scheduled_test/scheduled_test.dart';
 
 import '../../../lib/src/io.dart';
 import '../../descriptor.dart' as d;
 import '../../test_pub.dart';
 
 main() {
   initConfig();
   // Regression test for issue 20947.
-  integration('checks out an unfetched and locked revision of a cached '
-      'repository', () {
+  integration(
+      'checks out an unfetched and locked revision of a cached ' 'repository',
+      () {
     ensureGit();
 
     // In order to get a lockfile that refers to a newer revision than is in the
     // cache, we'll switch between two caches. First we ensure that the repo is
     // in the first cache.
-    d.git('foo.git', [
-      d.libDir('foo'),
-      d.libPubspec('foo', '1.0.0')
-    ]).create();
+    d.git('foo.git', [d.libDir('foo'), d.libPubspec('foo', '1.0.0')]).create();
 
-    d.appDir({"foo": {"git": "../foo.git"}}).create();
+    d.appDir({
+      "foo": {
+        "git": "../foo.git"
+      }
+    }).create();
 
     pubGet();
 
     // Switch to a new cache.
-    schedule(() => renameDir(
-        p.join(sandboxDir, cachePath), p.join(sandboxDir, "$cachePath.old")));
+    schedule(
+        () =>
+            renameDir(p.join(sandboxDir, cachePath), p.join(sandboxDir, "$cachePath.old")));
 
     // Make the lockfile point to a new revision of the git repository.
-    d.git('foo.git', [
-      d.libDir('foo', 'foo 2'),
-      d.libPubspec('foo', '1.0.0')
-    ]).commit();
+    d.git(
+        'foo.git',
+        [d.libDir('foo', 'foo 2'), d.libPubspec('foo', '1.0.0')]).commit();
 
     pubUpgrade(output: contains("Changed 1 dependency!"));
 
     // Switch back to the old cache.
     schedule(() {
       var cacheDir = p.join(sandboxDir, cachePath);
       deleteEntry(cacheDir);
       renameDir(p.join(sandboxDir, "$cachePath.old"), cacheDir);
     });
 
     // Get the updated version of the git dependency based on the lockfile.
     pubGet();
 
-    d.dir(cachePath, [
-      d.dir('git', [
-        d.dir('cache', [d.gitPackageRepoCacheDir('foo')]),
-        d.gitPackageRevisionCacheDir('foo'),
-        d.gitPackageRevisionCacheDir('foo', 2)
-      ])
-    ]).validate();
+    d.dir(
+        cachePath,
+        [
+            d.dir(
+                'git',
+                [
+                    d.dir('cache', [d.gitPackageRepoCacheDir('foo')]),
+                    d.gitPackageRevisionCacheDir('foo'),
+                    d.gitPackageRevisionCacheDir('foo', 2)])]).validate();
 
-    d.dir(packagesPath, [
-      d.dir('foo', [
-        d.file('foo.dart', 'main() => "foo 2";')
-      ])
-    ]).validate();
+    d.dir(
+        packagesPath,
+        [d.dir('foo', [d.file('foo.dart', 'main() => "foo 2";')])]).validate();
   });
 }