dart2js: run dartfmt on tests

tests/compiler/dart2js/lookup_map_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.
 
 library tests.dart2js.lookup_map_test;
 
 import 'package:test/test.dart';
 import 'compiler_helper.dart';
 
 main() {
   Map<String, String> testDeclarations = {
     'types': r'''
       import 'package:lookup_map/lookup_map.dart';
       class A {}
       class B {}
       class C {}
       class D {}
       class E {}''',
-
     'const keys': r'''
       import 'package:lookup_map/lookup_map.dart';
       class Key { final name; const Key(this.name); }
       const A = const Key("A");
       const B = const Key("B");
       const C = const Key("C");
       const D = const Key("D");
       const E = const Key("E");''',
-
     'mixed keys': r'''
       import 'package:lookup_map/lookup_map.dart';
       class Key { final name; const Key(this.name); }
       const A = const Key("A");
       class B {}
       const C = const Key("C");
       class D {}
       const E = const Key("E");''',
   };
 
@@ skipping 346 matching lines @@
         main() {
           reflectType(A);
           print(map[A]);
         }
     """);
     expect(generated, contains("the-text-for-A"));
     expect(generated, contains("the-text-for-B"));
     expect(generated, isNot(contains("the-text-for-C")));
   });
 }