### 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.
#ifdef DEBUG_ENABLED
	bool has_error = false;
	for (const Variant &warning_name : p_annotation->resolved_arguments) {
		GDScriptWarning::Code warning = GDScriptWarning::get_code_from_name(String(warning_name).to_upper());
		if (warning == GDScriptWarning::WARNING_MAX) {
			push_error(vformat(R"(Invalid warning name: "%s".)", warning_name), p_annotation);
			has_error = true;
		} else {
			p_node->ignored_warnings.push_back(warning);
		}
	}
	return !has_error;
#else 
	
	return true;
#endif 
}
bool GDScriptParser::rpc_annotation(const AnnotationNode *p_annotation, Node *p_node) {