{"ast_node_type":"other","tokens":[{"end":88,"kind":"keyword","start":0,"text":"field_name.syntax().ancestors().nth(2).and_then(ast::RecordPatField::cast)?;"}]}
            field_name.syntax().ancestors().nth(2).and_then(ast::RecordPatField::cast)?;
        let candidate =
        match candidate.field_name()? {