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

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

 // 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 'package:path/path.dart' as path;
 import 'package:scheduled_test/scheduled_test.dart';
 
 import '../../../lib/src/io.dart';
 import '../../descriptor.dart' as d;
 import '../../test_pub.dart';
 
 main() {
   initConfig();
   integration('reinstalls previously cached git packages', () {
     // Create two cached revisions of foo.
-    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();
 
-    d.git('foo.git', [
-      d.libDir('foo'),
-      d.libPubspec('foo', '1.0.1')
-    ]).commit();
+    d.git('foo.git', [d.libDir('foo'), d.libPubspec('foo', '1.0.1')]).commit();
 
     pubUpgrade();
 
     // Break them.
     var fooDirs;
     schedule(() {
       // Find the cached foo packages for each revision.
       var gitCacheDir = path.join(sandboxDir, cachePath, "git");
-      fooDirs = listDir(gitCacheDir)
-          .where((dir) => path.basename(dir).startsWith("foo-")).toList();
+      fooDirs = listDir(
+          gitCacheDir).where((dir) => path.basename(dir).startsWith("foo-")).toList();
 
       // Delete "foo.dart" from them.
       for (var dir in fooDirs) {
         deleteEntry(path.join(dir, "lib", "foo.dart"));
       }
     });
 
     // Repair them.
-    schedulePub(args: ["cache", "repair"],
-        output: '''
+    schedulePub(args: ["cache", "repair"], output: '''
           Resetting Git repository for foo 1.0.0...
           Resetting Git repository for foo 1.0.1...
           Reinstalled 2 packages.''');
 
     // The missing libraries should have been replaced.
     schedule(() {
       var fooLibs = fooDirs.map((dir) {
         var fooDirName = path.basename(dir);
-        return d.dir(fooDirName, [
-          d.dir("lib", [d.file("foo.dart", 'main() => "foo";')])
-        ]);
+        return d.dir(
+            fooDirName,
+            [d.dir("lib", [d.file("foo.dart", 'main() => "foo";')])]);
       }).toList();
 
-      d.dir(cachePath, [
-        d.dir("git", fooLibs)
-      ]).validate();
+      d.dir(cachePath, [d.dir("git", fooLibs)]).validate();
     });
   });
 }