### Godot version

v4.0.beta14.official [28a24639c]

### System information

MacOS 12.6.2

### Issue description

Beta 14 throws an error for custom `@icon`, e.g.
```
class_name StateMachine extends Node

@icon("res://assets/icons/state_machine.svg")
```
> Annotation "`@icon`" is not allowed in this level.

In beta 13 and before that worked fine.

### Steps to reproduce

1. Add a custom `@icon` in a custom node script.
2. Error message: Annotation "`@icon`" is not allowed in this level.

There are possibly other errors because a `class_name` node is now not recognized if extended by other classes, but they should resolve if `@icon` is removed.

### Minimal reproduction project

N/A
case Node::IDENTIFIER:
			print_identifier(static_cast<IdentifierNode *>(p_expression));
			break;
		case Node::LAMBDA:
			print_lambda(static_cast<LambdaNode *>(p_expression));
			break;
		case Node::LITERAL:
			print_literal(static_cast<LiteralNode *>(p_expression));
			break;
		case Node::PRELOAD:
			print_preload(static_cast<PreloadNode *>(p_expression));
			break;
		case Node::SELF:
			print_self(static_cast<SelfNode *>(p_expression));
			break;
		case Node::SUBSCRIPT:
			print_subscript(static_cast<SubscriptNode *>(p_expression));
			break;
		case Node::TERNARY_OPERATOR:
			print_ternary_op(static_cast<TernaryOpNode *>(p_expression));
			break;
		case Node::UNARY_OPERATOR:
			print_unary_op(static_cast<UnaryOpNode *>(p_expression));
			break;
		default:
			push_text(vformat("<unknown expression %d>", p_expression->type));
			break;
	}
}
void GDScriptParser::TreePrinter::print_enum(EnumNode *p_enum) {