Add a function to parse metadata into a usable object.

lib/src/util/dart.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 unittest.util.dart;
 
 import 'dart:async';
 import 'dart:io';
 import 'dart:isolate';
 
@@ skipping 53 matching lines @@
   Isolate.spawnUri(Uri.parse(message['uri']), [], message['message'],
           packageRoot: packageRoot)
       .then((_) => replyTo.send({'type': 'success'}))
       .catchError((error, stackTrace) {
     replyTo.send({
       'type': 'error',
       'error': RemoteException.serialize(error, stackTrace)
     });
   });
 }
-
-/// Parse all the annotations at the beginning of a Dart file.
-///
-/// This will parse annotations until the first non-annotation production is
-/// reached.
-List<Annotation> parseAnnotations(String path) {
-  var contents = new File(path).readAsStringSync();
-  var directives = parseDirectives(contents, name: path).directives;
-  return directives.isEmpty ? [] : directives.first.metadata;
-}