dart2js: run dartfmt on tests

tests/compiler/dart2js/js_safety_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';
 import 'package:compiler/src/js/js.dart' as js;
 import 'package:compiler/src/js/placeholder_safety.dart';
 
-void test(String source, int expected, {List notNull: const[]}) {
-  var predicate = (int pos) => ! notNull.contains(pos);
+void test(String source, int expected, {List notNull: const []}) {
+  var predicate = (int pos) => !notNull.contains(pos);
   js.Template template = js.js.parseForeignJS(source);
   int actual = PlaceholderSafetyAnalysis.analyze(template.ast, predicate);
   Expect.equals(expected, actual, 'source: "$source", notNull: $notNull');
 }
 
-
 void main() {
   test('0', 0);
 
   test('#.x', 1);
   test('!!#.x', 1);
   test('#.x + 1', 1);
   test('1 + #.x', 1);
   test('#[#] + 2', 2);
   test('2 + #[#]', 2);
   test('(# & #) >>> 0', 2);
 
   test('#.a + #.b + #.c', 1);
   test('#.b + #.b + #.c', 2, notNull: [0]);
   test('#.c + #.b + #.c', 3, notNull: [0, 1]);
   test('#.d + #.b + #.c', 1, notNull: [1]);
 
   test('typeof(#) == "string"', 1);
   test('"object" === typeof #', 1);
 
   test('# == 1 || # == 2 || # == 3', 1);
   test('# != 1 && # != 2 && # != 3', 1);
 
   test('#.x == 1 || # == 1', 1);
   test('# == 1 || #.x == 1', 1);
 
-  test('(# || 1, #)', 1);  // Could also be 2.
+  test('(# || 1, #)', 1); // Could also be 2.
 
   test('(#, null.a, #)', 1);
   test('(#, undefined.a, #)', 1);
   test('(#, (void 0).a, #)', 1);
   test('(#, "a".a, #)', 2);
   test('((#, "a").a, #)', 2);
 
   test('#[#][#][#][#]', 2);
   test('#[#][#][#][#]', 3, notNull: [0]);
   test('#[#][#][#][#]', 3, notNull: [0, 1, 2, 3]);
@@ skipping 36 matching lines @@
   test('throw #.x', 1);
 
   test('(function(){})()', 0);
   test('(function(a,b){#})(#, #)', 0);
   // Placeholders in an immediate call are ok.
   test('(function(a,b){a++;b++;return a+b})(#, #)', 2);
 
   test('# ? # : #', 1);
   test('(# ? 1 : #, #)', 1);
   test('(# ? # : 2, #)', 1);
-  test('(# ? 1 : 2, #)', 1);  // Could also be 4.
+  test('(# ? 1 : 2, #)', 1); // Could also be 4.
 
   test('{A:#, B:#, C:#}', 3);
   test('[#,#,#,#]', 4);
   test('[,,,,#,#,,,]', 2);
 }