Access parameter data in Annotations, as well as fixed export visibility

pkg/docgen/test/multi_library_test.dart

 // Copyright (c) 2014, 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 single_library_test;
 
 import 'package:path/path.dart' as p;
 import 'package:unittest/unittest.dart';
 
 import '../lib/docgen.dart';
@@ skipping 71 matching lines @@
           methodParameterDocComment = exportedClass.fixReference(
               'B').children.first.text;
           expect(methodParameterDocComment, 'test_lib.B');
 
           methodParameterDocComment = exportedClass.fixReference(
               'testFunc').children.first.text;
           expect(methodParameterDocComment, 'test_lib.testFunc');
 
         });
     });
+
+    test('multiple exported libraries.', () {
+      var lib_file = p.toUri(p.join(getMultiLibraryCodePath(), 'lib',
+          'test_lib2.dart'));
+      return getMirrorSystem([lib_file], false)
+        .then((mirrorSystem) {
+          var library = new Library(mirrorSystem.libraries[lib_file]);
+
+          // Test that libraries do recursive exports correctly.
+          expect(true, library.classes.keys.contains('Bar'));
+        });
+
+    });
   });
 }