Move timer tests to async tests.

tests/isolate/isolate.status

Index: tests/isolate/isolate.status
diff --git a/tests/isolate/isolate.status b/tests/isolate/isolate.status
index d6d1368a4b7f15d055a5250c89481f0a8df79377..e182b6d2183f410b676190936b3887ee04f89853 100644
--- a/tests/isolate/isolate.status
+++ b/tests/isolate/isolate.status
@@ -9,9 +9,6 @@ serialization_test: Skip  # tests dart2js-specific serialization code
 spawn_uri_test: Fail, OK # test uses a ".js" suffix that is bogus on vm.
 compute_this_script_browser_test: Skip # browser specific test
 ports_compilation_browser_test: Skip # browser specific test
-timer_not_available_test: Fail, OK # only meant to test when there is no way to
-                                   # implement timer (currently only in d8)
-timer_isolate_test: Skip # See Issue 4997
 unresolved_ports_negative_test: Skip # See Issue 6839
 global_error_handler_test: Fail # See Issue 9013.
 
@@ -23,9 +20,6 @@ spawn_uri_test: Skip # uses a .js extension (not for dartium)
 spawn_uri_negative_test: Skip # ditto
 spawn_uri_vm_test: Skip # not implemented in dartium yet.
 spawn_uri_vm_negative_test: Skip
-timer_isolate_test: Skip # See Issue 4997
-timer_not_available_test: Skip # only meant to test when there is no way to
-                               # implement timer (currently only in d8)
 global_error_handler_test: Fail # See Issue 9013.
 
 [ $compiler == dartc ]
@@ -54,12 +48,6 @@ mixed_test: Pass,Fail               # Depends on 32/64 bit Safari. See Issue 112
 mixed2_test: Pass,Fail              # Depends on 32/64 bit Safari. See Issue 1120
 message_test: Skip
 
-[ $runtime == ff ]
-# FF setTimeout can fire early: https://bugzilla.mozilla.org/show_bug.cgi?id=291386
-multiple_timer_test: Pass, Fail
-timer_isolate_test: Pass, Fail
-timer_test: Pass, Fail
-
 # TODO(ager): Update these.
 [ $runtime == ie9 && $system == windows ]
 v2*: Skip
@@ -74,35 +62,21 @@ v2*: Skip
 *: Skip
 
 [ $runtime == opera ]
-multiple_timer_test: Pass, Fail
 isolate2_negative_test: Skip # Timeout.
 unresolved_ports_negative_test: Skip # See Issue 6839
 
-[ $runtime == opera && $system == windows]
-# TODO(efortuna): Investigate.
-timer_test: Fail, Pass
-
 [ $compiler == dart2js && $browser ]
 spawn_uri_test: Skip # dart2js does not support spawnUri yet
 spawn_uri_negative_test: Skip # ditto
 spawn_uri_vm_test: Skip # test uses a ".dart" suffix that only works in vm.
 spawn_uri_vm_negative_test: Skip # ditto above.
-timer_not_available_test: Fail, OK # only meant to test when there is no way to
-                                   # implement timer (currently only in d8)
 isolate2_negative_test: Fail, Pass # Issue 7769
 
 [ $compiler == dart2js && $jscl ]
-multiple_timer_test: Fail,OK # Needs Timer to run.
 spawn_uri_negative_test: Pass # for the wrong reasons (not supported in d8)
 spawn_uri_test: Fail, OK # loading another file is not supported in d8
 spawn_uri_vm_negative_test: Skip # ditto above.
 spawn_uri_vm_test: Skip # test uses a ".dart" suffix that only works in vm.
-timer_cancel_test: Fail,OK # Needs Timer to run.
-timer_cancel1_test: Fail,OK # Needs Timer to run.
-timer_cancel2_test: Fail,OK # Needs Timer to run.
-timer_isolate_test: Fail, OK # Needs Timer to run.
-timer_repeat_test: Fail,OK # Needs Timer to run.
-timer_test: Fail,OK # Needs Timer to run.
 
 [ $compiler == dart2js && $runtime == none ]
 *: Fail, Pass # TODO(ahe): Triage these tests.