Format all tests.

tests/isolate/nested_spawn2_test.dart

 // Copyright (c) 2012, 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.
 
 // Dart test program for testing that isolates can spawn other isolates and
 // that the nested isolates can communicate with the main once the spawner has
 // disappeared.
 
 library NestedSpawn2Test;
+
 import 'dart:isolate';
 import 'package:unittest/unittest.dart';
 import "remote_unittest_helper.dart";
 
 void isolateA(SendPort init) {
   ReceivePort port = new ReceivePort();
   init.send(port.sendPort);
   port.first.then((message) {
     expect(message[0], "launch nested!");
     SendPort replyTo = message[1];
@@ skipping 46 matching lines @@
             expect(msg[0], "4");
             _call(replyTo, msg5, expectAsync((msg, _) {
               expect(msg[0], "6");
             }));
           }));
         }));
       }));
     }));
   });
 }