### 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 (E.name == call->function_name) {
						r_arghint += _make_arguments_hint(E, p_argidx);
						return;
					}
				}
			}
		}
		if (subscript->is_attribute) {
			bool found_type = _get_subscript_type(p_context, subscript, base_type, &base);
			if (!found_type) {
				GDScriptCompletionIdentifier ci;
				if (_guess_expression_type(p_context, subscript->base, ci)) {
					base_type = ci.type;
					base = ci.value;
				} else {
					return;
				}
			}
			_static = base_type.is_meta_type;
		}
	} else if (Variant::has_utility_function(call->function_name)) {
		MethodInfo info = Variant::get_utility_function_info(call->function_name);
		r_arghint = _make_arguments_hint(info, p_argidx);
		return;
	} else if (GDScriptUtilityFunctions::function_exists(call->function_name)) {
		MethodInfo info = GDScriptUtilityFunctions::get_function_info(call->function_name);
		r_arghint = _make_arguments_hint(info, p_argidx);
		return;
	} else if (GDScriptParser::get_builtin_type(call->function_name) < Variant::VARIANT_MAX) {