{"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":".and_then(|tok|"}]}
                .and_then(|tok| Some(sema.hir_file_for(&tok.parent()?)))
            let file_id = loop_token
                .unwrap_or_else(|| sema.hir_file_for(label.unwrap().syntax()));