{"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"if"}]}
    if tcx.is_coroutine(def.to_def_id()) {
fn mir_drops_elaborated_and_const_checked(tcx: TyCtxt<'_>, def: LocalDefId) -> &Steal<Body<'_>> {
        tcx.ensure_done().mir_coroutine_witnesses(def);