Fix run_zoned6 and run_zoned9 test.

tests/lib/async/run_zoned9_test.dart

Index: tests/lib/async/run_zoned9_test.dart
diff --git a/tests/lib/async/run_zoned9_test.dart b/tests/lib/async/run_zoned9_test.dart
index 5ba8de2d6fb0b6c66c4241146e4f693b64f31f6c..ab0f5ab17c0712fb6400aff5062e0cf7b653518d 100644
--- a/tests/lib/async/run_zoned9_test.dart
+++ b/tests/lib/async/run_zoned9_test.dart
@@ -22,12 +22,14 @@ main() {
     }, onError: (e) {
       Expect.equals(0, e);
       Expect.isTrue(sawInnerHandler);
-      asyncEnd();
+      // If we are waiting for an error, don't asyncEnd, but let it time out.
+      if (false) /// 01: runtime error
+        asyncEnd();
       throw e;  /// 01: runtime error
     });
   } catch (e) {
     // We should never see an error here.
-    if (true)  /// 01: continued
+    if (false)  /// 01: continued
       rethrow;
   }
 }