{"ast_node_type":"variable","tokens":[{"end":114,"kind":"keyword","start":0,"text":"let"}]}
                let Some((variant, _)) = def.discriminants(*ecx.tcx).find(|(_, var)| discr_bits == var.val) else {
                let discr_bits = discr.to_bits(discr.size());
                    throw_machine_stop_str!("illegal discriminant for enum")