Use the new test runner.

test/build/copies_browser_js_next_to_entrypoints_test.dart

Index: test/build/copies_browser_js_next_to_entrypoints_test.dart
diff --git a/test/build/copies_browser_js_next_to_entrypoints_test.dart b/test/build/copies_browser_js_next_to_entrypoints_test.dart
index 99e4e64d4128cb6d8485a3cc1ea795e5d47b7182..1f92016b9ada953dd8c0d72c1f3b76c51a02a5b1 100644
--- a/test/build/copies_browser_js_next_to_entrypoints_test.dart
+++ b/test/build/copies_browser_js_next_to_entrypoints_test.dart
@@ -2,6 +2,10 @@
 // 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;
@@ -9,13 +13,7 @@ import '../test_pub.dart';
 import 'utils.dart';
 
 main() {
-  initConfig();
-
   integration("compiles dart.js and interop.js next to entrypoints", () {
-    // Dart2js can take a long time to compile dart code, so we increase the
-    // timeout to cope with that.
-    currentSchedule.timeout *= 3;
-
     serveBrowserPackage();
 
     d.dir(appPath, [