Use scheduled_test for Pub tests.

utils/tests/pub/install/path/absolute_path_test.dart

-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// 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 file.
+// BSD-style license that can be found in the LICENSE d.file.
 
 import '../../../../../pkg/pathos/lib/path.dart' as path;
+import '../../../../../pkg/scheduled_test/lib/scheduled_test.dart';
 
+import '../../../../pub/io.dart';
+import '../../descriptor.dart' as d;
 import '../../test_pub.dart';
 
 main() {
   initConfig();
   integration('path dependency with absolute path', () {
-    dir('foo', [
-      libDir('foo'),
-      libPubspec('foo', '0.0.1')
-    ]).scheduleCreate();
+    d.dir('foo', [
+      d.libDir('foo'),
+      d.libPubspec('foo', '0.0.1')
+    ]).create();
 
-    dir(appPath, [
-      pubspec({
+    d.dir(appPath, [
+      d.pubspec({
         "name": "myapp",
         "dependencies": {
           "foo": {"path": path.join(sandboxDir, "foo")}
         }
       })
-    ]).scheduleCreate();
+    ]).create();
 
     schedulePub(args: ["install"],
         output: new RegExp(r"Dependencies installed!$"));
 
-    dir(packagesPath, [
-      dir("foo", [
-        file("foo.dart", 'main() => "foo";')
+    d.dir(packagesPath, [
+      d.dir("foo", [
+        d.file("foo.dart", 'main() => "foo";')
       ])
-    ]).scheduleValidate();
+    ]).validate();
 
     // Move the packages directory and ensure the symlink still works. That
     // will validate that we actually created an absolute symlink.
-    dir("moved").scheduleCreate();
+    d.dir("moved").create();
     scheduleRename(packagesPath, "moved/packages");
 
-    dir("moved/packages", [
-      dir("foo", [
-        file("foo.dart", 'main() => "foo";')
+    d.dir("moved/packages", [
+      d.dir("foo", [
+        d.file("foo.dart", 'main() => "foo";')
       ])
-    ]).scheduleValidate();
+    ]).validate();
   });
 }