Heartbeat implementation of dart:mirrors.

lib/mirrors/mirrors.dart

Index: lib/mirrors/mirrors.dart
===================================================================
--- lib/mirrors/mirrors.dart	(revision 0)
+++ lib/mirrors/mirrors.dart	(revision 0)
@@ -0,0 +1,18 @@
+// 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.
+
+// #library("mirrors");
+
+// The dart:mirrors library provides reflective access for Dart program.
+//
+// TODO(turnidge): Complete this api.  This is a placeholder.
+
+interface IsolateMirror {
+  // A name used to refer to an isolate in debugging messages.
+  final String debugName;
+}
+
+Future<IsolateMirror> isolateMirrorOf(SendPort port) {
+  return _Mirrors.isolateMirrorOf(port);
+}