Format all tests.

tests/language/abstract_beats_arguments_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.
 
 import "package:expect/expect.dart";
 
 // When an instantiation of an abstract class has the wrong arguments, an
 // AbstractClassInstantiationError is thrown, not a NoSuchMethodError.
 
 abstract class A {
-  A() { }
+  A() {}
 }
 
 class B {
-  B() { }
+  B() {}
 }
 
 bool isAbstractClassInstantiationError(e) =>
     e is AbstractClassInstantiationError;
 
 bool isNoSuchMethodError(e) => e is NoSuchMethodError;
 
 void main() {
   Expect.throws(() => new A(), isAbstractClassInstantiationError);
 
   Expect.throws(() => new B(1), isNoSuchMethodError);
   Expect.throws(() => new A(1), isAbstractClassInstantiationError);
 }