Rename runAsync to scheduleMicrotask.

sdk/lib/_internal/pub/lib/src/utils.dart

Index: sdk/lib/_internal/pub/lib/src/utils.dart
diff --git a/sdk/lib/_internal/pub/lib/src/utils.dart b/sdk/lib/_internal/pub/lib/src/utils.dart
index c942d05bdf62e1b369d338144691f09cde39034b..392310b9c290aac3539ccff3bb4074c0556e93e8 100644
--- a/sdk/lib/_internal/pub/lib/src/utils.dart
+++ b/sdk/lib/_internal/pub/lib/src/utils.dart
@@ -601,9 +601,9 @@ Future resetStack(fn()) {
   // Using [new Future] adds an asynchronous operation that works around the
   // first and second cases described above.
   newFuture(fn).then((val) {
-    runAsync(() => completer.complete(val));
+    scheduleMicrotask(() => completer.complete(val));
   }).catchError((err) {
-    runAsync(() => completer.completeError(err));
+    scheduleMicrotask(() => completer.completeError(err));
   });
   return completer.future;
 }