{"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"tcx.dcx().emit_err(errors::ParenSugarAttribute"}]}
        tcx.dcx().emit_err(errors::ParenSugarAttribute { span: item.span });
    if paren_sugar && !tcx.features().unboxed_closures() {
    }