{"ast_node_type":"variable","tokens":[{"end":94,"kind":"keyword","start":0,"text":"let"}]}
        let is_unit = |var: &ty::VariantDef| matches!(var.ctor_kind(), Some(CtorKind::Const));
    if def.repr().int.is_none() {
        let get_disr = |var: &ty::VariantDef| match var.discr {