### Godot version

4.0.beta10.mono.official

### System information

Windows 11

### Issue description

After registering a C# Script with Autoload and trying to connect to a signal using the `Signal.connect` method (`Singleton.Signal.connect(xxx)`) fails with `Invalid get index 'Signal' (on base: 'Node (Singleton.cs)'). But with `Object.connect` it works.

### Steps to reproduce

- Create a C# class script with a Signal named `Signal` (could be any other).
- Register it with Autoload with the name `Singleton` (could be any other).
- Create a GDScript script and try to connect the Singleton's signal using `Singleton.Signal.connect(xxx)`
- When running the project it fails with `Invalid get index 'Sample' (on base: 'Node (Singleton.cs)').`

### Minimal reproduction project

[example.zip](https://github.com/godotengine/godot/files/10414500/example.zip)

} else {
				OS::get_singleton()->print("Cannot resolve type from method reference in documentation: %s\n", p_link_target.utf8().get_data());
			}
		}
		
		_append_xml_undeclared(p_xml_output, p_link_target);
	} else {
		if (p_target_cname == "_init") {
			
			p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
			p_xml_output.append(p_target_itype->proxy_name);
			p_xml_output.append(".");
			p_xml_output.append(p_target_itype->proxy_name);
			p_xml_output.append("()\"/>");
		} else {
			const MethodInterface *target_imethod = p_target_itype->find_method_by_name(p_target_cname);
			if (target_imethod) {
				p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
				p_xml_output.append(p_target_itype->proxy_name);
				p_xml_output.append(".");
				p_xml_output.append(target_imethod->proxy_name);
				p_xml_output.append("\"/>");
			} else {
				ERR_PRINT("Cannot resolve method reference in documentation: '" + p_link_target + "'.");
				_append_xml_undeclared(p_xml_output, p_link_target);
			}
		}
	}
}
void BindingsGenerator::_append_xml_member(StringBuilder &p_xml_output, const TypeInterface *p_target_itype, const StringName &p_target_cname, const String &p_link_target, const Vector<String> &p_link_target_parts) {