Format all tests.

tests/corelib/uri_ipv4_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.
 
 import 'package:expect/expect.dart';
 
 void testParseIPv4Address() {
   void pass(String host, List<int> out) {
     Expect.listEquals(Uri.parseIPv4Address(host), out);
   }
+
   void fail(String host) {
-    Expect.throws(() => Uri.parseIPv4Address(host),
-                  (e) => e is FormatException);
+    Expect.throws(
+        () => Uri.parseIPv4Address(host), (e) => e is FormatException);
   }
 
   pass('127.0.0.1', [127, 0, 0, 1]);
   pass('128.0.0.1', [128, 0, 0, 1]);
   pass('255.255.255.255', [255, 255, 255, 255]);
   pass('0.0.0.0', [0, 0, 0, 0]);
   fail('127.0.0.-1');
   fail('255.255.255.256');
   fail('0.0.0.0.');
   fail('0.0.0.0.0');
   fail('a.0.0.0');
   fail('0.0..0');
 }
 
 void main() {
   testParseIPv4Address();
 }