### 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
} else {
							full = false;
							break;
						}
					} else {
						full = false;
						break;
					}
				}
				if (full) {
					
					r_type.value = a;
				}
				r_type.type.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT;
				r_type.type.kind = GDScriptParser::DataType::BUILTIN;
				r_type.type.builtin_type = Variant::ARRAY;
				found = true;
			} break;
			case GDScriptParser::Node::CAST: {
				const GDScriptParser::CastNode *cn = static_cast<const GDScriptParser::CastNode *>(p_expression);
				GDScriptCompletionIdentifier value;
				if (_guess_expression_type(p_context, cn->operand, r_type)) {
					r_type.type = cn->get_datatype();
					found = true;
				}
			} break;
			case GDScriptParser::Node::CALL: {
				const GDScriptParser::CallNode *call = static_cast<const GDScriptParser::CallNode *>(p_expression);
				if (GDScriptParser::get_builtin_type(call->function_name) < Variant::VARIANT_MAX) {
					r_type.type.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT;