### 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
if (p_variable->property == VariableNode::PROP_INLINE) {
				push_line(":");
				increase_indent();
				print_suite(p_variable->getter->body);
				decrease_indent();
			} else {
				push_line(" =");
				increase_indent();
				print_identifier(p_variable->getter_pointer);
				push_line();
				decrease_indent();
			}
		}
		if (p_variable->setter != nullptr) {
			push_text("Set (");
			if (p_variable->property == VariableNode::PROP_INLINE) {
				if (p_variable->setter_parameter != nullptr) {
					print_identifier(p_variable->setter_parameter);
				} else {
					push_text("<missing>");
				}
				push_line("):");
				increase_indent();
				print_suite(p_variable->setter->body);
				decrease_indent();
			} else {
				push_line(" =");
				increase_indent();
				print_identifier(p_variable->setter_pointer);
				push_line();