### 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 (!is_editable()) {
		return;
	}
	begin_complex_operation();
	Vector<int> caret_edit_order = get_caret_index_edit_order();
	for (const int &c : caret_edit_order) {
		
		
		int selection_offset = 1;
		int start_line = get_caret_line(c);
		int end_line = start_line;
		if (has_selection(c)) {
			start_line = get_selection_from_line(c);
			end_line = get_selection_to_line(c);