Fix test_chain_test at head (#1122)

Author: grouma

pkgs/test/test/runner/test_chain_test.dart

@@ -6,8 +6,8 @@
 
 import 'dart:convert';
 
-import 'package:test_descriptor/test_descriptor.dart' as d;
 import 'package:test/test.dart';
+import 'package:test_descriptor/test_descriptor.dart' as d;
 
 import '../io.dart';
 
@@ -70,12 +70,12 @@ void main() {
  'dart_test.yaml',
  jsonEncode({
  'fold_stack_frames': {
- 'only': ['test']
+ 'only': ['test_api']
  }
  }))
  .create();
  var test = await runTest(['test.dart']);
- expect(test.stdoutStream(), emitsThrough(contains('package:test')));
+ expect(test.stdoutStream(), emitsThrough(contains('package:test_api')));
  await test.shouldExit(1);
- }, skip: 'https://github.com/dart-lang/test/issues/1120');
+ });
 }