### 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)

push_text("Class ");
	if (p_class->identifier == nullptr) {
		push_text("<unnamed>");
	} else {
		print_identifier(p_class->identifier);
	}
	if (p_class->extends_used) {
		bool first = true;
		push_text(" Extends ");
		if (!p_class->extends_path.is_empty()) {
			push_text(vformat(R"("%s")", p_class->extends_path));
			first = false;
		}
		for (int i = 0; i < p_class->extends.size(); i++) {
			if (!first) {
				push_text(".");
			} else {
				first = false;
			}
			push_text(p_class->extends[i]);
		}
	}
	push_line(" :");
	increase_indent();
	for (int i = 0; i < p_class->members.size(); i++) {
		const ClassNode::Member &m = p_class->members[i];
		switch (m.type) {