Rename runAsync to scheduleMicrotask.

tests/lib/async/intercept_run_async4_test.dart

Index: tests/lib/async/intercept_run_async4_test.dart
diff --git a/tests/lib/async/intercept_run_async4_test.dart b/tests/lib/async/intercept_run_async4_test.dart
index 30c4a276089908feef09c201bb3dd229f1bcaa49..2be31797c96d81e43b5ecbf520e3949aa3251ccf 100644
--- a/tests/lib/async/intercept_run_async4_test.dart
+++ b/tests/lib/async/intercept_run_async4_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");
     });
   });
@@ -21,18 +21,18 @@ body() {
 
 handler(fun) {
   events.add("handler");
-  runAsync(fun);
+  scheduleMicrotask(fun);
   events.add("handler done");
 }
 
 main() {
   asyncStart();
 
-  // Test that body of a runAsync goes to the zone it came from.
-  var result = runZonedExperimental(body, onRunAsync: handler);
+  // Test that body of a scheduleMicrotask goes to the zone it came from.
+  var result = runZonedExperimental(body, onScheduleMicrotask: handler);
   events.add("after");
-  runAsync(() {
-    runAsync(() {
+  scheduleMicrotask(() {
+    scheduleMicrotask(() {
       Expect.listEquals(
           ["body entry",
            "handler", "handler done",