Migrated test block 170 to Dart 2.0.

tests/lib/lib.status

Index: tests/lib/lib.status
diff --git a/tests/lib/lib.status b/tests/lib/lib.status
index ccddbc62aa8ec05344d4170824bf92e6d58efe07..9c20839d3352b352fd24c4ae967116cef0b2d1d6 100644
--- a/tests/lib/lib.status
+++ b/tests/lib/lib.status
@@ -168,7 +168,6 @@ async/slow_consumer3_test: RuntimeError # Timer interface not supported; Issue 7
 async/slow_consumer_test: RuntimeError # Timer interface not supported; Issue 7728.
 async/stream_from_iterable_test: RuntimeError # Timer interface not supported; Issue 7728.
 async/stream_state_nonzero_timer_test: RuntimeError # Timer interface not supported; Issue 7728.
-async/multiple_timer_test: RuntimeError,OK # Needs Timer to run.
 async/timer_cancel_test: RuntimeError,OK # Needs Timer to run.
 async/timer_cancel1_test: RuntimeError,OK # Needs Timer to run.
 async/timer_cancel2_test: RuntimeError,OK # Needs Timer to run.
@@ -235,13 +234,10 @@ mirrors/*: Skip # Issue 27929: Triage
 [ $runtime == flutter ]
 mirrors/*: Skip # Flutter does not support mirrors.
 async/catch_errors11_test: Skip # Flutter Issue 9113
-async/intercept_schedule_microtask2_test: Skip # Flutter Issue 9113
 async/run_zoned6_test/01: Skip # Flutter Issue 9113
 async/schedule_microtask_test: Skip # Flutter Issue 9113
-async/intercept_schedule_microtask6_test: Skip # Flutter Issue 9113
 async/stream_empty_test: Skip # Flutter Issue 9113
 async/run_zoned9_test/01: Skip # Flutter Issue 9113
-async/intercept_schedule_microtask5_test: Skip # Flutter Issue 9113
 async/stream_event_transformed_test: Skip # Flutter Issue 9113
 math/random_secure_test: RuntimeError # Flutter Issue 9113
 
@@ -299,7 +295,6 @@ async/future_or_strong_test: RuntimeError, OK
 # These use package:unittest
 async/first_regression_test: RuntimeError
 async/future_timeout_test: RuntimeError
-async/multiple_timer_test: RuntimeError
 async/schedule_microtask2_test: RuntimeError
 async/schedule_microtask3_test: RuntimeError
 async/schedule_microtask5_test: RuntimeError
@@ -436,7 +431,6 @@ convert/chunked_conversion_utf88_test: Pass, Timeout
 convert/utf85_test: Pass, Timeout
 
 [ $hot_reload || $hot_reload_rollback ]
-async/multiple_timer_test: Pass, Fail # Timing related
 async/stream_transformer_test: Pass, Fail # Closure identity
 mirrors/closurization_equivalence_test: SkipByDesign # Method equality
 mirrors/fake_function_with_call_test: SkipByDesign # Method equality