Add tests for list and async marker

tests/compiler/dart2js/inference/data/async_marker.dart

+// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+/*main:[null]*/
+main() {
+  asyncMethod();
+  asyncStarMethod();
+  syncStarMethod();
+}
+
+/*asyncMethod:[exact=_Future]*/
+asyncMethod() async {}
+
+/*asyncStarMethod:[exact=_ControllerStream]*/
+asyncStarMethod() async* {}
+
+/*syncStarMethod:[exact=_SyncStarIterable]*/
+syncStarMethod() sync* {}