Migrated test block 168 to Dart 2.0.

tests/lib_strong/lib_strong.status

Index: tests/lib_strong/lib_strong.status
diff --git a/tests/lib_strong/lib_strong.status b/tests/lib_strong/lib_strong.status
index 3642fca2d51b80642e9ad85f2d6b4aa23aff9a85..1d6facbf6ffc57107da7244ad86d6cd52871af2c 100644
--- a/tests/lib_strong/lib_strong.status
+++ b/tests/lib_strong/lib_strong.status
@@ -12,16 +12,6 @@ async/async_await_sync_completer_test: Skip
 async/async_await_zones_test: Skip
 async/catch_errors2_test: Skip
 async/catch_errors3_test: Skip
-async/catch_errors_test: Skip
-async/future_microtask_test: Skip
-async/future_or_bad_type_test/00: Skip
-async/future_or_bad_type_test/01: Skip
-async/future_or_bad_type_test/implements: Skip
-async/future_or_only_in_async_test/00: Skip
-async/future_test/none: Skip
-async/future_test/01: Skip
-async/future_test/none: Skip
-async/future_value_chain4_test: Skip
 async/print_test/01: Skip
 async/print_test/none: Skip
 async/slow_consumer3_test: Skip
@@ -187,10 +177,6 @@ html/custom/mirrors_test: Crash # Issue 29922
 html/custom/regress_194523002_test: Crash # Issue 29922
 
 [ $compiler == dartdevc && $runtime != none ]
-async/future_or_bad_type_test/none: RuntimeError # Issue 29922
-async/future_or_non_strong_test: RuntimeError # Issue 29922
-async/future_or_strong_test: RuntimeError # Issue 29922
-async/futures_test: RuntimeError # Issue 29922
 async/slow_consumer_test: Pass, Timeout # Issue 29922
 async/timer_not_available_test: RuntimeError # Issue 29922
 async/zone_error_callback_test: RuntimeError # Issue 29922