Compatibility pass on flutter/scheduler tests for JavaScript compilation. (2) (#33350)

dev/bots/test.dart

@@ -343,6 +343,7 @@ Future<void> _runTests() async {
 Future<void> _runWebTests() async {
   await _runFlutterWebTest(path.join(flutterRoot, 'packages', 'flutter'), expectFailure: false, tests: <String>[
     'test/foundation/',
+    'test/scheduler/',
   ]);
 }
 

packages/flutter/test/scheduler/benchmarks_test.dart

@@ -34,7 +34,7 @@ class TestBinding extends LiveTestWidgetsFlutterBinding {
   }
 }
 
-Future<void> main() async {
+void main() {
   final TestBinding binding = TestBinding();
 
   test('test pumpBenchmark() only runs one frame', () async {
@@ -67,5 +67,5 @@ Future<void> main() async {
     // We are not interested in the performance of the "benchmark", we are just
     // testing the behavior. So it's OK that asserts are enabled.
     mayRunWithAsserts: true);
-  });
+  }, skip: isBrowser);
 }

packages/flutter/test/scheduler/scheduler_test.dart

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
+
 import 'dart:async';
 
 import 'package:flutter/foundation.dart';