Deal with deferred loading in the VM mirrors.

tests/lib/mirrors/library_enumeration_deferred_loading_test.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 foo;
+library libray_enumeration_deferred_loading;

[gbracha, 2015/04/18 18:00:46]

libray -> library

[rmacnak, 2015/04/20 17:21:04]

Done.

 
-@MirrorsUsed(targets: const ["foo", "bar"])
 import 'dart:mirrors';
-import 'typedef_library.dart' deferred as def;
+import 'package:expect/expect.dart';
+import 'package:async_helper/async_helper.dart';
 
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
+import 'other_library.dart' deferred as other;
 
 main() {
+  var ms = currentMirrorSystem();
+  Expect.throws(() => ms.findLibrary(#test.other_library),
+                (e) => true, "should not be loaded yet");
+
   asyncStart();
-  def.loadLibrary().then((_) {
-    var barLibrary = currentMirrorSystem().findLibrary(new Symbol("bar"));
-    var gTypedef = barLibrary.declarations[new Symbol("G")];
-    Expect.equals("G", MirrorSystem.getName(gTypedef.simpleName));
+  other.loadLibrary().then((_) {
     asyncEnd();
+    Expect.isNotNull(ms.findLibrary(#test.other_library));
   });
-}
+}

[gbracha, 2015/04/18 18:00:46]

This is not exactly parallel to the other two (import and load_library) tests.

[rmacnak, 2015/04/20 17:21:04]

Filled in gap.