Mark findInContext as failing on dartium, but not drt.

tests/lib/lib.status

Index: tests/lib/lib.status
diff --git a/tests/lib/lib.status b/tests/lib/lib.status
index 0f2d48937a9ac186fe0fc8720a30d8a08b3f120d..f7f2123ade99a57f80eb36bcf15da8c7725728c8 100644
--- a/tests/lib/lib.status
+++ b/tests/lib/lib.status
@@ -197,9 +197,6 @@ async/timer_not_available_test: SkipByDesign # only meant to test when there is
 
 [ $compiler == none && ( $runtime == drt || $runtime == dartium ) ]
 async/schedule_microtask6_test: Fail # Issue 10910
-mirrors/find_in_context_test: Fail # Issue 13719
-mirrors/find_in_context_private_test: Fail # Issue 13719
-mirrors/find_in_context_fake_function_test: Fail # Issue 13719
 mirrors/immutable_collections_test: Fail # Issue 11857, Issue 14321
 mirrors/library_uri_io_test: Skip # Not intended for drt as it uses dart:io.
 mirrors/local_isolate_test: Skip # http://dartbug.com/12188
@@ -222,6 +219,9 @@ convert/utf85_test: Pass, Slow # Issue 12644.
 [ $compiler == none && $runtime == dartium ]
 async/schedule_microtask5_test: Pass, Timeout # Issue 13719: Please triage this failure.
 async/timer_cancel2_test: Pass, Timeout # Issue 13719: Please triage this failure.
+mirrors/find_in_context_test: Fail # Issue 13719: Needs VM flag
+mirrors/find_in_context_private_test: Fail # Issue 13719: Needs VM flag
+mirrors/find_in_context_fake_function_test: Fail # Issue 13719: Needs VM flag
 
 [ $compiler == none && ($runtime == drt || $runtime == dartium) ]
 # Issue 13921: spawnFunction is not allowed on Dartium's DOM thread.