{"ast_node_type":"variable","tokens":[{"end":66,"kind":"keyword","start":0,"text":"let"}]}
            let enum_ty = place.ty(self.local_decls, self.tcx).ty;
        if self.map.find_discr(place.as_ref()).is_some() {
            if let Some(discr) = self.eval_discriminant(enum_ty, variant_index) {