Format all tests.

tests/language/implicit_super_constructor_call_test.dart

 // Copyright (c) 2015, 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.
 
 // This is a regression test for http://dartbug.com/22723.
 
 import "package:expect/expect.dart";
 
 class A {
   final x;
 
   @NoInline()
   A({this.x: "foo"}) {
     Expect.equals("foo", x.toString());
   }
 }
 
 class C extends A {
-  C(foobar) { }
+  C(foobar) {}
 }
 
 main() {
   var c = new C(499);
   Expect.equals("foo", c.x.toString());
 }
-