Format all tests.

tests/language/parameter_initializer3_negative_test.dart

 // Copyright (c) 2011, 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.
 
 // Fails because this.x parameter is used in a factory.
 
 class Foo {
   var x;
   factory Foo(this.x) {
     return new Foo.named();
   }
   Foo.named() {}
 }
 
-
 class ParameterInitializer3NegativeTest {
   static testMain() {
     new Foo(2);
   }
 }
 
 main() {
   ParameterInitializer3NegativeTest.testMain();
 }