dart2js: run dartfmt on tests

tests/compiler/dart2js_native/subclassing_1_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";
 import 'dart:_js_helper' show Native, Creates, setNativeSubclassDispatchRecord;
 import 'dart:_interceptors' show findInterceptorForType;
 
 // Test that subclasses of native classes can be defined by setting the dispatch
 // record.
 
 @Native("A")
 class A {
-  foo(x) =>  '$x,${this.oof()}';
+  foo(x) => '$x,${this.oof()}';
   oof() => 'A';
 }
 
 class B extends A {
   oof() => 'B';
 }
 
-B makeB1() native;
-B makeB2() native;
-B makeC() native;
+B makeB1() native ;
+B makeB2() native ;
+B makeC() native ;
 
 @Creates('=Object')
-getBPrototype() native;
+getBPrototype() native ;
 
 @Creates('=Object')
-getCPrototype() native;
+getCPrototype() native ;
 
 void setup() native r"""
 function A() {}
 function B() {}
 function C() {}
 makeA = function(){return new A;};
 makeB1 = function(){return new B;};
 makeB2 = function(){return new B;};
 makeC = function(){return new C;};
 
 getBPrototype = function(){return B.prototype;};
 getCPrototype = function(){return C.prototype;};
 """;
 
 main() {
   setup();
 
   setNativeSubclassDispatchRecord(getBPrototype(), findInterceptorForType(B));
   setNativeSubclassDispatchRecord(getCPrototype(), findInterceptorForType(B));
 
   B b1 = makeB1();
   Expect.equals('1,B', b1.foo(1));
 
   B b2 = makeB2();
   Expect.equals('2,B', b2.foo(2));
 
   B b3 = makeC();
   Expect.equals('3,B', b3.foo(3));
 }