{"ast_node_type":"variable","tokens":[{"end":86,"kind":"keyword","start":0,"text":"let"}]}
                let is_declared_nonexhaustive = cx.is_foreign_non_exhaustive_enum(ty);
            ty::Adt(def, args) if def.is_enum() => {
                if def.variants().is_empty() && !is_declared_nonexhaustive {