Format all multitests

tests/language/factory1_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 factory generic result types.
 
 class A<T> {
-  A() { }
+  A() {}
   factory A.factory() {
     return new A<String>();
   }
 }
 
 class B<T> extends A<T> {
-  B() { }
+  B() {}
   factory B.factory() {
     return new B<String>();
   }
 }
 
-
 main() {
   new A<String>.factory();
   new A<int>.factory(); // //# 00: dynamic type error
   new B<String>.factory();
   new B<int>.factory(); // //# 01: dynamic type error
 }