{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"//"}]}
                // mark the type of variant live when meeting E::V in expr
            rustc_hir::PatExprKind::Path(qpath) => {
                if let ty::Adt(adt, _) = self.typeck_results().node_type(expr.hir_id).kind() {