Use the new test runner.

test/build/outputs_results_to_json_test.dart

Index: test/build/outputs_results_to_json_test.dart
diff --git a/test/build/outputs_results_to_json_test.dart b/test/build/outputs_results_to_json_test.dart
index 3fb7c1c7c37557f88fc194904518ae36dde93881..d20e713af0e71e707f38627c7d70b8ab37a80a13 100644
--- a/test/build/outputs_results_to_json_test.dart
+++ b/test/build/outputs_results_to_json_test.dart
@@ -2,19 +2,17 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// Dart2js can take a long time to compile dart code, so we increase the timeout
+// to cope with that.
+@Timeout.factor(3)
+
 import 'package:scheduled_test/scheduled_test.dart';
 
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
 
 main() {
-  initConfig();
-
   integration("outputs results to JSON in a successful build", () {
-    // Dart2js can take a long time to compile dart code, so we increase the
-    // timeout to cope with that.
-    currentSchedule.timeout *= 3;
-
     d.dir(appPath, [
       d.appPubspec(),
       d.dir('web', [