### Godot version

4.0 dev_build

### System information

Ubuntu 22.04.1

### Issue description

The "Lookup Symbol" button don't appears for custorm class names.
Related issues: #68475,  #73167.
I tried apply #68311, #69473 and #73196. It don't helps.
The `Ctrl+LMB` works right for all cases.

### Steps to reproduce

Right click to the `CustomClassA` symbol in the `custom_class_b.gd` anywhere. The `Lookup Symbol` button don't appears in the context menu.

### Minimal reproduction project

Example from  #68475.
accept_event();
			queue_redraw();
			return;
		}
		if (code_completion_active && code_completion_rect.has_point(mm->get_position())) {
			accept_event();
			return;
		}
	}
	Ref<InputEventKey> k = p_gui_input;
	if (TextEdit::alt_input(p_gui_input)) {
		accept_event();
		return;
	}
	bool update_code_completion = false;
	if (!k.is_valid()) {
		
		
		if (!mm.is_valid() || !is_code_completion_drag_started) {
			TextEdit::gui_input(p_gui_input);
		}
		return;
	}
	
	bool mac_keys = OS::get_singleton()->has_feature("macos") || OS::get_singleton()->has_feature("web_macos") || OS::get_singleton()->has_feature("web_ios");
	if ((mac_keys && k->get_keycode() == Key::META) || (!mac_keys && k->get_keycode() == Key::CTRL)) {
		if (symbol_lookup_on_click_enabled) {
			if (k->is_pressed() && !is_dragging_cursor()) {
				symbol_lookup_new_word = get_word_at_pos(get_local_mouse_pos());
				if (symbol_lookup_new_word != symbol_lookup_word) {