{"ast_node_type":"variable","tokens":[{"end":34,"kind":"keyword","start":0,"text":"if"}]}
    if let Some(did) = fn_def_id {
pub fn fn_can_unwind(tcx: TyCtxt<'_>, fn_def_id: Option<DefId>, abi: ExternAbi) -> bool {
        // Special attribute for functions which can't unwind.