### Godot version

4.2 f5696c3

### System information

Windows 10 x64

### Issue description

![image](https://github.com/godotengine/godot/assets/2223172/7ad0e3b6-9599-4f7b-a07c-da54779e647a)


### Steps to reproduce

1. Add node
2. Attach a built-in script
3. Add child node
4. Add script to the child node
5. In some method write `get_parent().bui`

### Minimal reproduction project

N/A
if (!opt.replace("/", "_").is_valid_identifier()) {
						
						
						opt = opt.quote(opt.contains("'") ? "\"" : quote_style); 
					}
					ScriptLanguage::CodeCompletionOption option(opt, ScriptLanguage::CODE_COMPLETION_KIND_NODE_PATH);
					options.insert(option.display, option);
				}
				
				for (const KeyValue<StringName, ProjectSettings::AutoloadInfo> &E : ProjectSettings::get_singleton()->get_autoload_list()) {
					String path = "/root/" + E.key;
					ScriptLanguage::CodeCompletionOption option(path.quote(quote_style), ScriptLanguage::CODE_COMPLETION_KIND_NODE_PATH);
					options.insert(option.display, option);
				}
			}
		} break;
		case GDScriptParser::COMPLETION_SUPER_METHOD: {
			if (!completion_context.current_class) {
				break;
			}
			_find_identifiers_in_class(completion_context.current_class, true, false, true, options, 0);
		} break;
	}
	for (const KeyValue<String, ScriptLanguage::CodeCompletionOption> &E : options) {
		r_options->push_back(E.value);
	}
	return OK;
}
#else
Error GDScriptLanguage::complete_code(const String &p_code, const String &p_path, Object *p_owner, List<ScriptLanguage::CodeCompletionOption> *r_options, bool &r_forced, String &r_call_hint) {