{"ast_node_type":"variable","tokens":[{"end":74,"kind":"keyword","start":0,"text":"let"}]}
    let ty::Coroutine(coroutine_def_id, impl_args) = impl_ty.kind() else {
) -> Body<'tcx> {
        bug!("build_adrop_for_coroutine_shim not for coroutine impl type: ({:?})", instance);