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 b570d6c580e034b89d755c3ff3ee9aaa7b35e9cf..a2973d9440a630e8ee4063d2a0119b006e2abaf5 100644
--- a/sdk/lib/_internal/pub/lib/src/utils.dart
+++ b/sdk/lib/_internal/pub/lib/src/utils.dart
@@ -602,9 +602,9 @@ 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;
 }