### 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 (get_selection_to_column(c) == 0) {
				selection_offset = 0;
				end_line--;
			}
		}
		for (int i = start_line; i <= end_line; i++) {
			const String line_text = get_line(i);
			if (line_text.size() == 0 && has_selection(c)) {
				continue;
			}
			if (!indent_using_spaces) {
				set_line(i, '\t' + line_text);
				continue;
			}
			
			
			int spaces_to_add = _calculate_spaces_till_next_right_indent(get_first_non_whitespace_column(i));
			set_line(i, String(" ").repeat(spaces_to_add) + line_text);
			selection_offset = spaces_to_add;
		}
		
		if (has_selection(c)) {
			select(start_line, get_selection_from_column(c) + selection_offset, get_selection_to_line(c), get_selection_to_column(c) + selection_offset, c);
		}
		set_caret_column(get_caret_column(c) + selection_offset, false, c);
	}
	end_complex_operation();
	queue_redraw();
}
void CodeEdit::unindent_lines() {