### Godot version

4.0 beta 16 and 17

### System information

Windows 11

### Issue description

Before beta 16 you could write `@export_category(name)` and it would make a category with "name" as the name.
Now you must use a string when defining the category name. (`@export_category("name")`)
The issue is that the moment you type something that doesn't start with `"` the engine crashes.

### Steps to reproduce

1. Create a script.
2. Write one of the following:
a) `@export_category()`
b) `@export_group()`
c) `@export_subgroup()`
3. In the parentheses write *any* character other than `"`.
4. Watch it crash.

If you managed to save the file the project will crash when opened.

### Minimal reproduction project

[Minimal.zip](https://github.com/godotengine/godot/files/10561826/Minimal.zip)

GDScriptTokenizer::Token::Type op_type = previous.type;
	LiteralNode *constant = alloc_node<LiteralNode>();
	complete_extents(constant);
	switch (op_type) {
		case GDScriptTokenizer::Token::CONST_PI:
			constant->value = Math_PI;
			break;
		case GDScriptTokenizer::Token::CONST_TAU:
			constant->value = Math_TAU;
			break;
		case GDScriptTokenizer::Token::CONST_INF:
			constant->value = INFINITY;
			break;
		case GDScriptTokenizer::Token::CONST_NAN:
			constant->value = NAN;
			break;
		default:
			return nullptr; 
	}
	return constant;
}
GDScriptParser::ExpressionNode *GDScriptParser::parse_unary_operator(ExpressionNode *p_previous_operand, bool p_can_assign) {