Treat `MenuBar` and `MenuButton` as advanced UI

scene/gui/menu_bar.cpp

@@ -680,10 +680,7 @@ void MenuBar::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_menu_hidden", "menu", "hidden"), &MenuBar::set_menu_hidden);
 	ClassDB::bind_method(D_METHOD("is_menu_hidden", "menu"), &MenuBar::is_menu_hidden);
 
-	// TODO: Properly handle popups when advanced GUI is disabled.
-#ifndef ADVANCED_GUI_DISABLED
 	ClassDB::bind_method(D_METHOD("get_menu_popup", "menu"), &MenuBar::get_menu_popup);
-#endif // ADVANCED_GUI_DISABLED
 
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "flat"), "set_flat", "is_flat");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "start_index"), "set_start_index", "get_start_index");

scene/gui/menu_button.cpp

@@ -173,10 +173,7 @@ bool MenuButton::_get(const StringName &p_name, Variant &r_ret) const {
 }
 
 void MenuButton::_bind_methods() {
-	// TODO: Properly handle popups when advanced GUI is disabled.
-#ifndef ADVANCED_GUI_DISABLED
 	ClassDB::bind_method(D_METHOD("get_popup"), &MenuButton::get_popup);
-#endif // ADVANCED_GUI_DISABLED
 	ClassDB::bind_method(D_METHOD("show_popup"), &MenuButton::show_popup);
 	ClassDB::bind_method(D_METHOD("set_switch_on_hover", "enable"), &MenuButton::set_switch_on_hover);
 	ClassDB::bind_method(D_METHOD("is_switch_on_hover"), &MenuButton::is_switch_on_hover);

scene/register_scene_types.cpp

@@ -402,8 +402,6 @@ void register_scene_types() {
 	GDREGISTER_CLASS(VSlider);
 	GDREGISTER_CLASS(Popup);
 	GDREGISTER_CLASS(PopupPanel);
-	GDREGISTER_CLASS(MenuBar);
-	GDREGISTER_CLASS(MenuButton);
 	GDREGISTER_CLASS(CheckBox);
 	GDREGISTER_CLASS(CheckButton);
 	GDREGISTER_CLASS(LinkButton);
@@ -458,6 +456,8 @@ void register_scene_types() {
 	GDREGISTER_CLASS(CodeHighlighter);
 
 	GDREGISTER_ABSTRACT_CLASS(TreeItem);
+	GDREGISTER_CLASS(MenuBar);
+	GDREGISTER_CLASS(MenuButton);
 	GDREGISTER_CLASS(OptionButton);
 	GDREGISTER_CLASS(SpinBox);
 	GDREGISTER_CLASS(ColorPicker);