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

sdk/lib/_internal/pub_generated/test/get/path/absolute_path_test.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS d.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 d.file.
 
 import 'package:path/path.dart' as path;
 
 import '../../descriptor.dart' as d;
 import '../../test_pub.dart';
 
 main() {
   initConfig();
   integration('path dependency with absolute path', () {
-    d.dir('foo', [
-      d.libDir('foo'),
-      d.libPubspec('foo', '0.0.1')
-    ]).create();
+    d.dir('foo', [d.libDir('foo'), d.libPubspec('foo', '0.0.1')]).create();
 
-    d.dir(appPath, [
-      d.appPubspec({
-        "foo": {"path": path.join(sandboxDir, "foo")}
-      })
-    ]).create();
+    d.dir(appPath, [d.appPubspec({
+        "foo": {
+          "path": path.join(sandboxDir, "foo")
+        }
+      })]).create();
 
     pubGet();
 
-    d.dir(packagesPath, [
-      d.dir("foo", [
-        d.file("foo.dart", 'main() => "foo";')
-      ])
-    ]).validate();
+    d.dir(
+        packagesPath,
+        [d.dir("foo", [d.file("foo.dart", 'main() => "foo";')])]).validate();
 
     // Move the packages directory and ensure the symlink still works. That
     // will validate that we actually created an absolute symlink.
     d.dir("moved").create();
     scheduleRename(packagesPath, "moved/packages");
 
-    d.dir("moved/packages", [
-      d.dir("foo", [
-        d.file("foo.dart", 'main() => "foo";')
-      ])
-    ]).validate();
+    d.dir(
+        "moved/packages",
+        [d.dir("foo", [d.file("foo.dart", 'main() => "foo";')])]).validate();
   });
-}
+}