### 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.
if (!code_completion_active) {
		return Dictionary();
	}
	ERR_FAIL_INDEX_V(p_index, code_completion_options.size(), Dictionary());
	Dictionary option;
	option["kind"] = code_completion_options[p_index].kind;
	option["display_text"] = code_completion_options[p_index].display;
	option["insert_text"] = code_completion_options[p_index].insert_text;
	option["font_color"] = code_completion_options[p_index].font_color;
	option["icon"] = code_completion_options[p_index].icon;
	option["location"] = code_completion_options[p_index].location;
	option["default_value"] = code_completion_options[p_index].default_value;
	return option;
}
int CodeEdit::get_code_completion_selected_index() const {