### 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)

p_output << "Object.";
			}
			p_output << ICALL_CLASSDB_GET_METHOD "(" BINDINGS_NATIVE_NAME_FIELD ", MethodName."
					 << p_imethod.proxy_name
					 << ");\n";
		}
		if (p_imethod.method_doc && p_imethod.method_doc->description.size()) {
			String xml_summary = bbcode_to_xml(fix_doc_description(p_imethod.method_doc->description), &p_itype);
			Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
			if (summary_lines.size()) {
				p_output.append(MEMBER_BEGIN "/// <summary>\n");
				for (int i = 0; i < summary_lines.size(); i++) {
					p_output.append(INDENT1 "/// ");
					p_output.append(summary_lines[i]);
					p_output.append("\n");
				}
				p_output.append(INDENT1 "/// </summary>");
			}
		}
		if (default_args_doc.get_string_length()) {
			p_output.append(default_args_doc.as_string());
		}
		if (p_imethod.is_deprecated) {
			if (p_imethod.deprecation_message.is_empty()) {
				WARN_PRINT("An empty deprecation message is discouraged. Method: '" + p_imethod.proxy_name + "'.");
			}
			p_output.append(MEMBER_BEGIN "[Obsolete(\"");
			p_output.append(p_imethod.deprecation_message);
			p_output.append("\")]");