### Godot version

v4.0.beta13.official [caacade56]

### System information

Windows 8.1

### Issue description

The `Unreachable code (statement after return) in function 'function_name()'` warning is given for functions that do not have unreachable code. The same code does not give this warning in v3.5.stable.official [991bb6ac7].

### Steps to reproduce

```
func warning(i: int) -> void:
  if i == 0:
    pass
  elif i == 1:
    return
  else:
    return
  print("yeah")
```

Removing either the `elif` or the `else` removes the warning.

### Minimal reproduction project

N/A; code in reproduction steps can be placed in any blank gdscript file to trigger the error.
head = alloc_node<ClassNode>();
	head->fqcn = script_path;
	current_class = head;
	bool can_have_class_or_extends = true;
	while (match(GDScriptTokenizer::Token::ANNOTATION)) {
		AnnotationNode *annotation = parse_annotation(AnnotationInfo::SCRIPT | AnnotationInfo::STANDALONE | AnnotationInfo::CLASS_LEVEL);
		if (annotation != nullptr) {
			if (annotation->applies_to(AnnotationInfo::SCRIPT)) {
				
				if (annotation->name == SNAME("@icon")) {
					annotation->apply(this, head);
				} else {
					head->annotations.push_back(annotation);
				}
			} else {
				annotation_stack.push_back(annotation);
				
				
				
				can_have_class_or_extends = false;
				break;
			}