I get some compilation errors with the new version:
Assets/Editor/UIDrawCallOverview.cs(88,56): error CS1061: Type `UIDrawCall' does not contain a definition for `baseMaterial' and no extension method `baseMaterial' of type `UIDrawCall' could be found (are you missing a using directive or an assembly reference?)
Assets/Editor/UIDrawCallOverview.cs(88,29): error CS1502: The best overloaded method match for `UnityEditor.EditorGUILayout.ObjectField(string, UnityEngine.Object,
System.Type, params UnityEngine.GUILayoutOption[])' has some invalid arguments
Assets/Editor/UIDrawCallOverview.cs(88,29): error CS1503: Argument `#2' cannot convert `object' expression to type `UnityEngine.Object'