### 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 (branch == nullptr) {
			advance();
			continue;
		}
#ifdef DEBUG_ENABLED
		if (have_wildcard_without_continue && !branch->patterns.is_empty()) {
			push_warning(branch->patterns[0], GDScriptWarning::UNREACHABLE_PATTERN);
		}
		if (branch->has_wildcard) {
			have_wildcard = true;
			if (!branch->block->has_continue) {
				have_wildcard_without_continue = true;
			}
		}
		if (!branch->block->has_return) {
			all_have_return = false;
		}
#endif
		match->branches.push_back(branch);
	}
	complete_extents(match);
	consume(GDScriptTokenizer::Token::DEDENT, R"(Expected an indented block after "match" statement.)");
#ifdef DEBUG_ENABLED
	if (all_have_return && have_wildcard) {
		current_suite->has_return = true;
	}
#endif
	return match;
}
GDScriptParser::MatchBranchNode *GDScriptParser::parse_match_branch() {