Converted Observatory nav-notify element

runtime/observatory/lib/src/models/objects/breakpoint.dart

+// Copyright (c) 2016, 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
+
+part of models;
+
+abstract class Breakpoint extends Object {
+  /// A number identifying this breakpoint to the user.
+  int get number;
+
+  /// Has this breakpoint been assigned to a specific program location?
+  bool get resolved;
+}