fix pkg status file for unittest

pkg/pkg.status

 # 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.
 
 # Don't run any test-like files that show up in packages directories. It
 # shouldn't be necessary to run "pub install" in these packages, but if you do
 # it shouldn't break the tests.
 */packages/*/*: Skip
 */*/packages/*/*: Skip
 */*/*/packages/*/*: Skip
@@ skipping 148 matching lines @@
 scheduled_test/test/scheduled_test/nested_task_test: RuntimeError #Issue 21005
 scheduled_test/test/scheduled_test/on_complete_test: RuntimeError #Issue 21005
 scheduled_test/test/scheduled_test/on_exception_test: RuntimeError #Issue 21005
 scheduled_test/test/scheduled_test/set_up_test: RuntimeError #Issue 21005
 scheduled_test/test/scheduled_test/simple_test: RuntimeError #Issue 21005
 scheduled_test/test/scheduled_test/task_return_value_test: RuntimeError #Issue 21005
 scheduled_test/test/scheduled_test/tear_down_test: RuntimeError #Issue 21005
 scheduled_test/test/scheduled_test/unhandled_error_test: RuntimeError #Issue 21005
 scheduled_test/test/scheduled_test/wrap_future_test: RuntimeError #Issue 21005
 scheduled_test/test/unittest_compatibility_test: RuntimeError #Issue 21005
-unittest/test/missing_tick_test: RuntimeError # Timer interface not supported: dartbug.com/7728
+unittest/test/missing_tick_test: Fail # Timer interface not supported: dartbug.com/7728
 unittest/test/nested_groups_setup_teardown_test: RuntimeError # http://dartbug.com/10109
 
 [ $compiler == dart2js && $runtime == drt ]
 async/test/stream_zip_test: RuntimeError, Pass # Issue 18548
 
 [ $runtime == vm || $runtime == d8 || $runtime == jsshell ]
 polymer/example: Skip # Uses dart:html
 polymer/e2e_test: Skip # Uses dart:html
 polymer/test/auto_binding_test: Skip # uses dart:html
 polymer/test/attr_deserialize_test: Skip # uses dart:html
@@ skipping 298 matching lines @@
 third_party/angular_tests/browser_test/change_detection/dirty_checking_change_detector: Skip # Issue 17152
 
 [ $use_repository_packages ]
 analyzer/test/*: PubGetError
 
 [ $runtime == drt ]
 http/test/html/client_test: Skip # Issue 18566
 
 [ $system == windows ]
 analysis_server/test/integration/search/get_type_hierarchy_test: Pass, Fail # Issue 20436