### 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 removed_characters = 0;
		int initial_selection_end_column = 0;
		int initial_cursor_column = get_caret_column(c);
		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);
			
			initial_selection_end_column = get_selection_to_column(c);
			if (initial_selection_end_column == 0) {
				end_line--;
			}
		}
		bool first_line_edited = false;
		bool last_line_edited = false;
		for (int i = start_line; i <= end_line; i++) {