dart2js: run dartfmt on tests

tests/compiler/dart2js/type_inference7_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.
 
 import "package:async_helper/async_helper.dart";
 import "package:expect/expect.dart";
 import 'compiler_helper.dart';
 import 'type_mask_test_helper.dart';
 import 'dart:async';
 
@@ skipping 15 matching lines @@
     var commonMasks = compiler.commonMasks;
     var typesInferrer = compiler.globalInference.typesInferrer;
     var foo = findElement(compiler, "foo");
     // Return type is null|bool.
     var mask = typesInferrer.getReturnTypeOfElement(foo);
     Expect.isTrue(mask.isNullable);
     Expect.equals(commonMasks.boolType, simplify(mask.nonNullable(), compiler));
     // First parameter is uint31|String|bool.
     var mask1 = typesInferrer.getTypeOfElement(foo.parameters[0]);
     Expect.isTrue(mask1.isUnion);
-    var expectedTypes = new Set.from([commonMasks.uint31Type,
-                                      commonMasks.stringType,
-                                      commonMasks.boolType]);
+    var expectedTypes = new Set.from(
+        [commonMasks.uint31Type, commonMasks.stringType, commonMasks.boolType]);
     for (var typeMask in mask1.disjointMasks) {
       Expect.isFalse(typeMask.isNullable);
       var simpleType = simplify(typeMask, compiler);
       Expect.isTrue(expectedTypes.remove(simpleType), "$simpleType");
     }
     Expect.isTrue(expectedTypes.isEmpty);
     // Second parameter is bool or null.
     var mask2 = typesInferrer.getTypeOfElement(foo.parameters[1]);
     Expect.isTrue(mask2.isNullable);
     Expect.equals(
@@ skipping 22 matching lines @@
   }
 }
 
 main() {
   asyncStart();
   runTest().then((_) {
     // Make sure that the type is still correct when we do a second compilation.
     return runTest();
   }).whenComplete(asyncEnd);
 }