A few more flaky markers for IE

tests/co19/co19-dart2js.status

Index: tests/co19/co19-dart2js.status
===================================================================
--- tests/co19/co19-dart2js.status	(revision 26446)
+++ tests/co19/co19-dart2js.status	(working copy)
@@ -14,8 +14,8 @@
 [ $compiler == dart2js && $checked && $runtime == ie9 ]
 LibTest/core/Map/Map_class_A01_t04: Slow, Pass
 LibTest/isolate/isolate_api/spawnUri_A02_t03: Pass, Fail # Issue 8920
-LibTest/async/Completer/completeError_A02_t01: Fail # Issue 8920
 
+
 # Crashes first, please. Then untriaged bugs. There is a section below
 # for co19 bugs.
 [ $compiler == dart2js ]
@@ -79,8 +79,9 @@
 LibTest/isolate/ReceivePort/toSendPort_A01_t01: Pass, Fail # Issue: 8920
 LibTest/core/DateTime/timeZoneName_A01_t01: Fail # Issue: 8920
 LibTest/async/Stream/listen_A04_t01: Pass, Timeout # Issue: 8920
+LibTest/async/Completer/completeError_A02_t01: Pass, Fail # Issue 8920
+LibTest/async/DeferredLibrary/DeferredLibrary_A01_t01: Pass, Timeout # Issue 8920
 
-
 [ $compiler == dart2js && $runtime == jsshell ]
 LibTest/core/Map/Map_class_A01_t04: Pass, Slow # Issue 8096
 LibTest/core/double/round_A01_t01: Fail # TODO(ngeoaffray): Please triage these failure.