### 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.
break;
		}
		region = E.value;
	}
	
	if (region != -1 && end_position.x != -1 && (delimiters[region].line_only || end_position.x != get_line(p_line).length() + 1)) {
		end_position.y = p_line;
		return end_position;
	}
	
	if (region == -1) {
		end_position.x = -1;
		return end_position;
	}
	
	for (int i = p_line + 1; i < get_line_count(); i++) {
		if (delimiter_cache[i].size() < 1 || delimiter_cache[i].front()->value() != -1) {
			continue;
		}
		end_position.x = delimiter_cache[i].front()->key();
		
		if (get_line(i).length() > 0 && end_position.x != get_line(i).length() + 1) {
			end_position.y = i;
			break;
		}
		end_position.x = -1;
	}
	return end_position;
}
void CodeEdit::set_code_hint(const String &p_hint) {