Converted Observatory nav-notify element

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

Index: runtime/observatory/lib/src/models/objects/source_location.dart
diff --git a/runtime/observatory/lib/src/models/objects/source_location.dart b/runtime/observatory/lib/src/models/objects/source_location.dart
new file mode 100644
index 0000000000000000000000000000000000000000..5d35d57be62b7e7b8c598e26552ee813a7d6f08f
--- /dev/null
+++ b/runtime/observatory/lib/src/models/objects/source_location.dart
@@ -0,0 +1,14 @@
+// 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 SourceLocation {
+  /// The script containing the source location.
+  ScriptRef get script;
+  /// The first token of the location.
+  int get tokenPos;
+  /// The last token of the location if this is a range. [optional]
+  int get endTokenPos;
+}