### 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)

indent_level++;
	indent = "";
	for (int i = 0; i < indent_level * 4; i++) {
		if (i % 4 == 0) {
			indent += "|";
		} else {
			indent += " ";
		}
	}
}
void GDScriptParser::TreePrinter::decrease_indent() {
	indent_level--;
	indent = "";
	for (int i = 0; i < indent_level * 4; i++) {
		if (i % 4 == 0) {
			indent += "|";
		} else {
			indent += " ";
		}
	}
}
void GDScriptParser::TreePrinter::push_line(const String &p_line) {
	if (!p_line.is_empty()) {
		push_text(p_line);
	}
	printed += "\n";
	pending_indent = true;
}
void GDScriptParser::TreePrinter::push_text(const String &p_text) {