{"ast_node_type":"function","tokens":[{"end":72,"kind":"keyword","start":0,"text":"fn"}]}
    fn check_item(&mut self, cx: &LateContext<'_>, it: &hir::Item<'_>) {
impl<'tcx> LateLintPass<'tcx> for InvalidNoMangleItems {
        let attrs = cx.tcx.hir_attrs(it.hir_id());