Use human-readable unique names for GraphEdit's internal nodes

scene/gui/graph_edit.cpp

@@ -2786,6 +2786,7 @@ GraphEdit::GraphEdit() {
 	panner->set_callbacks(callable_mp(this, &GraphEdit::_pan_callback), callable_mp(this, &GraphEdit::_zoom_callback));
 
 	top_layer = memnew(Control);
+	top_layer->set_name("_top_layer");
 	add_child(top_layer, false, INTERNAL_MODE_BACK);
 	top_layer->set_mouse_filter(MOUSE_FILTER_IGNORE);
 	top_layer->set_anchors_and_offsets_preset(Control::PRESET_FULL_RECT);
@@ -2838,11 +2839,13 @@ GraphEdit::GraphEdit() {
 	menu_panel->set_position(Vector2(10, 10));
 
 	menu_hbox = memnew(HBoxContainer);
+	menu_hbox->set_name("_menu_hbox");
 	menu_panel->add_child(menu_hbox);
 
 	// Zoom label and controls.
 
 	zoom_label = memnew(Label);
+	zoom_label->set_name("_zoom_label");
 	zoom_label->set_visible(show_zoom_label);
 	zoom_label->set_v_size_flags(Control::SIZE_SHRINK_CENTER);
 	zoom_label->set_horizontal_alignment(HORIZONTAL_ALIGNMENT_CENTER);
@@ -2851,6 +2854,7 @@ GraphEdit::GraphEdit() {
 	_update_zoom_label();
 
 	zoom_minus_button = memnew(Button);
+	zoom_minus_button->set_name("_zoom_minus_button");
 	zoom_minus_button->set_theme_type_variation("FlatButton");
 	zoom_minus_button->set_visible(show_zoom_buttons);
 	zoom_minus_button->set_tooltip_text(ETR("Zoom Out"));
@@ -2859,6 +2863,7 @@ GraphEdit::GraphEdit() {
 	zoom_minus_button->connect(SceneStringName(pressed), callable_mp(this, &GraphEdit::_zoom_minus));
 
 	zoom_reset_button = memnew(Button);
+	zoom_reset_button->set_name("_zoom_reset_button");
 	zoom_reset_button->set_theme_type_variation("FlatButton");
 	zoom_reset_button->set_visible(show_zoom_buttons);
 	zoom_reset_button->set_tooltip_text(ETR("Zoom Reset"));
@@ -2867,6 +2872,7 @@ GraphEdit::GraphEdit() {
 	zoom_reset_button->connect(SceneStringName(pressed), callable_mp(this, &GraphEdit::_zoom_reset));
 
 	zoom_plus_button = memnew(Button);
+	zoom_plus_button->set_name("_zoom_plus_button");
 	zoom_plus_button->set_theme_type_variation("FlatButton");
 	zoom_plus_button->set_visible(show_zoom_buttons);
 	zoom_plus_button->set_tooltip_text(ETR("Zoom In"));
@@ -2877,6 +2883,7 @@ GraphEdit::GraphEdit() {
 	// Grid controls.
 
 	toggle_grid_button = memnew(Button);
+	toggle_grid_button->set_name("_toggle_grid_button");
 	toggle_grid_button->set_theme_type_variation("FlatButton");
 	toggle_grid_button->set_visible(show_grid_buttons);
 	toggle_grid_button->set_toggle_mode(true);
@@ -2887,6 +2894,7 @@ GraphEdit::GraphEdit() {
 	toggle_grid_button->connect(SceneStringName(pressed), callable_mp(this, &GraphEdit::_show_grid_toggled));
 
 	toggle_snapping_button = memnew(Button);
+	toggle_snapping_button->set_name("_toggle_snapping_button");
 	toggle_snapping_button->set_theme_type_variation("FlatButton");
 	toggle_snapping_button->set_visible(show_grid_buttons);
 	toggle_snapping_button->set_toggle_mode(true);
@@ -2897,6 +2905,7 @@ GraphEdit::GraphEdit() {
 	toggle_snapping_button->connect(SceneStringName(pressed), callable_mp(this, &GraphEdit::_snapping_toggled));
 
 	snapping_distance_spinbox = memnew(SpinBox);
+	snapping_distance_spinbox->set_name("_snapping_distance_spinbox");
 	snapping_distance_spinbox->set_visible(show_grid_buttons);
 	snapping_distance_spinbox->set_min(GRID_MIN_SNAPPING_DISTANCE);
 	snapping_distance_spinbox->set_max(GRID_MAX_SNAPPING_DISTANCE);
@@ -2909,6 +2918,7 @@ GraphEdit::GraphEdit() {
 	// Extra controls.
 
 	minimap_button = memnew(Button);
+	minimap_button->set_name("_minimap_button");
 	minimap_button->set_theme_type_variation("FlatButton");
 	minimap_button->set_visible(show_minimap_button);
 	minimap_button->set_toggle_mode(true);
@@ -2919,6 +2929,7 @@ GraphEdit::GraphEdit() {
 	minimap_button->connect(SceneStringName(pressed), callable_mp(this, &GraphEdit::_minimap_toggled));
 
 	arrange_button = memnew(Button);
+	arrange_button->set_name("_arrange_button");
 	arrange_button->set_theme_type_variation("FlatButton");
 	arrange_button->set_visible(show_arrange_button);
 	arrange_button->connect(SceneStringName(pressed), callable_mp(this, &GraphEdit::arrange_nodes));
@@ -2932,8 +2943,8 @@ GraphEdit::GraphEdit() {
 	const float minimap_opacity = 0.65;
 
 	minimap = memnew(GraphEditMinimap(this));
-	top_layer->add_child(minimap);
 	minimap->set_name("_minimap");
+	top_layer->add_child(minimap);
 	minimap->set_modulate(Color(1, 1, 1, minimap_opacity));
 	minimap->set_mouse_filter(MOUSE_FILTER_PASS);
 	minimap->set_custom_minimum_size(Vector2(50, 50));