{"ast_node_type":"function","tokens":[{"end":66,"kind":"keyword","start":0,"text":"fn"}]}
                fn visit_pat(&mut self, p: &'tcx hir::Pat<'tcx>) {
            impl<'tcx> Visitor<'tcx> for OverwritePatternsWithError {
                    self.pat_hir_ids.push(p.hir_id);