Format all tests.

tests/language/mixin_type_parameter3_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";
 
-abstract class Mixin1<T> {
-}
+abstract class Mixin1<T> {}
 
-abstract class Mixin2<T> {
-}
+abstract class Mixin2<T> {}
 
 class A {
   A(foo);
 }
 
 class B<K, V> extends A with Mixin1<K>, Mixin2<V> {
   B(foo) : super(foo);
 }
 
 main() {
   var b = new B<num, String>(null);
   Expect.isTrue(b is Mixin1<num>);
   Expect.isTrue(b is! Mixin1<String>);
   Expect.isTrue(b is Mixin2<String>);
   Expect.isTrue(b is! Mixin2<num>);
 }