Format all tests.

tests/language/generic_list_checked_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:expect/expect.dart';
 
 bool inCheckedMode() {
   try {
     int i = 'hest';
   } catch (e) {
     return true;
   }
   return false;
 }
 
 main() {
   if (inCheckedMode()) {
-    Expect.throws(() { List<int> t = new List<String>(); });
+    Expect.throws(() {
+      List<int> t = new List<String>();
+    });
   }
 }