Rename runAsync to scheduleMicrotask.

tests/lib/async/intercept_run_async5_test.dart

Index: tests/lib/async/intercept_run_async5_test.dart
diff --git a/tests/lib/async/intercept_run_async5_test.dart b/tests/lib/async/intercept_run_async5_test.dart
index 8c1882f68bfd3530e196f796148fcaac4332c7cd..c13bb04e4ae3a518ec3e7fd8dc6c733429b5022e 100644
--- a/tests/lib/async/intercept_run_async5_test.dart
+++ b/tests/lib/async/intercept_run_async5_test.dart
@@ -10,9 +10,9 @@ var events = [];
 
 body() {
   events.add("body entry");
-  runAsync(() {
+  scheduleMicrotask(() {
     events.add("run async body");
-    runAsync(() {
+    scheduleMicrotask(() {
       events.add("run nested body");
     });
   });
@@ -21,13 +21,13 @@ body() {
 
 handler(fun) {
   events.add("handler");
-  runAsync(fun);
+  scheduleMicrotask(fun);
   events.add("handler done");
 }
 
 handler2(fun) {
   events.add("handler2");
-  runAsync(fun);
+  scheduleMicrotask(fun);
   events.add("handler2 done");
 }
 
@@ -36,7 +36,7 @@ main() {
 
   // Test that nested runZonedExperimental go to the next outer zone.
   var result = runZonedExperimental(
-      () => runZonedExperimental(body, onRunAsync: handler2),
+      () => runZonedExperimental(body, onScheduleMicrotask: handler2),
       onRunAsync: handler);
   events.add("after");
   Timer.run(() {