{"ast_node_type":"function","tokens":[{"end":62,"kind":"keyword","start":0,"text":"fn"}]}
    fn visit_skipped_ref_pats(&mut self, hir_id: hir::HirId) {
    #[instrument(skip(self), level = "debug")]
        if self.fcx.typeck_results.borrow_mut().skipped_ref_pats_mut().remove(hir_id) {