### 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
}
void GDScriptParser::parse_class_body(bool p_is_multiline) {
	bool class_end = false;
	while (!class_end && !is_at_end()) {
		switch (current.type) {
			case GDScriptTokenizer::Token::VAR:
				parse_class_member(&GDScriptParser::parse_variable, AnnotationInfo::VARIABLE, "variable");
				break;
			case GDScriptTokenizer::Token::CONST:
				parse_class_member(&GDScriptParser::parse_constant, AnnotationInfo::CONSTANT, "constant");
				break;
			case GDScriptTokenizer::Token::SIGNAL:
				parse_class_member(&GDScriptParser::parse_signal, AnnotationInfo::SIGNAL, "signal");
				break;
			case GDScriptTokenizer::Token::STATIC:
			case GDScriptTokenizer::Token::FUNC:
				parse_class_member(&GDScriptParser::parse_function, AnnotationInfo::FUNCTION, "function");
				break;
			case GDScriptTokenizer::Token::CLASS:
				parse_class_member(&GDScriptParser::parse_class, AnnotationInfo::CLASS, "class");
				break;
			case GDScriptTokenizer::Token::ENUM:
				parse_class_member(&GDScriptParser::parse_enum, AnnotationInfo::NONE, "enum");
				break;
			case GDScriptTokenizer::Token::ANNOTATION: {
				advance();
				
				AnnotationNode *annotation = parse_annotation(AnnotationInfo::STANDALONE | AnnotationInfo::CLASS_LEVEL);
				if (annotation != nullptr) {
					if (annotation->applies_to(AnnotationInfo::STANDALONE)) {