Format all tests.

tests/lib_strong/async/run_zoned8_test.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // 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.
 
 import 'package:async_helper/async_helper.dart';
 import "package:expect/expect.dart";
 import 'dart:async';
 import 'catch_errors.dart';
 
 main() {
   asyncStart();
   Completer done = new Completer();
 
   var events = [];
   // Test runZoned with periodic Timers.
   runZoned(() {
     int counter = 0;
     new Timer.periodic(const Duration(milliseconds: 50), (timer) {
       if (counter == 1) {
         timer.cancel();
         done.complete(true);
       }
       counter++;
       events.add(counter);
       throw counter;
     });
-  }, onError: (e) { events.add("error: $e"); });
+  }, onError: (e) {
+    events.add("error: $e");
+  });
 
   done.future.whenComplete(() {
     Expect.listEquals([
-                      "main exit",
-                      1, "error: 1", 2, "error: 2",
-                      ],
-                      events);
+      "main exit",
+      1,
+      "error: 1",
+      2,
+      "error: 2",
+    ], events);
     asyncEnd();
   });
   events.add("main exit");
 }