test.dart: include _dart2js.status when creating test suites with 'forDirectory'

tools/testing/dart/test_suite.dart

 // Copyright (c) 2012, 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.
 
 /**
  * Classes and methods for enumerating and preparing tests.
  *
  * This library includes:
  *
  * - Creating tests by listing all the Dart files in certain directories,
@@ skipping 239 matching lines @@
    *
    * instead of having to create a custom [StandardTestSuite] subclass. In
    * particular, if you add 'path/to/mytestsuite' to [TEST_SUITE_DIRECTORIES]
    * in test.dart, this will all be set up for you.
    */
   factory StandardTestSuite.forDirectory(
       Map configuration, String directory) {
     final name = directory.substring(directory.lastIndexOf('/') + 1);
 
     return new StandardTestSuite(configuration,
-        name, directory, ['$directory/$name.status'],
+        name, directory,
+        ['$directory/$name.status', '$directory/${name}_dart2js.status'],
         (filename) => filename.endsWith('_test.dart'),
         recursive: true);
   }
 
   /**
    * The default implementation assumes a file is a test if
    * it ends in "Test.dart".
    */
   bool isTestFile(String filename) {
     // Use the specified predicate, if provided.
@@ skipping 44 matching lines @@
             doDone();
           }
           new Timer(0, enqueueCachedTests);
         }
       }
     }
 
     // Read test expectations from status files.
     testExpectations = new TestExpectations();
     for (var statusFilePath in statusFilePaths) {
+      // [forDirectory] adds name_dart2js.status for all tests suites, use it if
+      // it exists, but otherwise skip it and don't fail.
+      if (statusFilePath.endsWith('_dart2js.status')) {
+        File file = new File('$dartDir/$statusFilePath');
+        if (!file.existsSync()) {
+          filesRead++;
+          continue;
+        }
+      }
       ReadTestExpectationsInto(testExpectations,
                                '$dartDir/$statusFilePath',
                                configuration,
                                statusFileRead);
     }
   }
 
   void processDirectory() {
     directoryPath = '$dartDir/$directoryPath';
     Directory dir = new Directory(directoryPath);
@@ skipping 1058 matching lines @@
  * $noCrash tests are expected to be flaky but not crash
  * $pass tests are expected to pass
  * $failOk tests are expected to fail that we won't fix
  * $fail tests are expected to fail that we should fix
  * $crash tests are expected to crash that we should fix
  * $timeout tests are allowed to timeout
 """;
     print(report);
    }
 }