add undef:undefined field
diff --git a/javascript/tools/org.eclipse.dltk.javascript.dev-tools/src/org/eclipse/dltk/javascript/developertools/ExampleModelSaver.java b/javascript/tools/org.eclipse.dltk.javascript.dev-tools/src/org/eclipse/dltk/javascript/developertools/ExampleModelSaver.java
index 0cc81a3..54e9055 100644
--- a/javascript/tools/org.eclipse.dltk.javascript.dev-tools/src/org/eclipse/dltk/javascript/developertools/ExampleModelSaver.java
+++ b/javascript/tools/org.eclipse.dltk.javascript.dev-tools/src/org/eclipse/dltk/javascript/developertools/ExampleModelSaver.java
@@ -48,6 +48,9 @@
 		exampleType.getMembers()
 				.add(createProperty("uid", TypeUtil.ref("UID")));
 		exampleType.getMembers().add(
+				createProperty("undef",
+						TypeInfoModelFactory.eINSTANCE.createUndefinedType()));
+		exampleType.getMembers().add(
 				createProperty("name", TypeUtil.ref(stringType)));
 		exampleType.getMembers().add(
 				createProperty("names",