Skip zoned tests on dartium/drt

dart/tests/lib/lib.status

Index: dart/tests/lib/lib.status
diff --git a/dart/tests/lib/lib.status b/dart/tests/lib/lib.status
index 4aa8aeb744f77eab16f62004fd6a4bbfce73144c..f14235cc1e5e8c14b2a101f91459e5c15bccc4fe 100644
--- a/dart/tests/lib/lib.status
+++ b/dart/tests/lib/lib.status
@@ -2,6 +2,11 @@
 # 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.
 
+[ $runtime == dartium || $runtime == drt ]
+async/zone_run_guarded_test: Skip # Issue 14146
+async/zone_run_test: Skip # Issue 14146
+async/run_zoned9_test: Skip # Issue 14146
+
 [ $csp ]
 mirrors/delegate_test: RuntimeError # Issue 13864