autocompleting with indexing for native types added

Fix: #37768
(cherry picked from commit 3c45377c6e8b0bc3044d5ea3fe7b34b844e5a9f7)

modules/gdscript/gdscript_editor.cpp

@@ -2098,7 +2098,7 @@ static void _find_identifiers_in_base(const GDScriptCompletionContext &p_context
 
 				if (!p_only_functions) {
 					List<PropertyInfo> members;
-					p_base.value.get_property_list(&members);
+					tmp.get_property_list(&members);
 
 					for (List<PropertyInfo>::Element *E = members.front(); E; E = E->next()) {
 						if (String(E->get().name).find("/") == -1) {