{"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"(TyKind::FnDef(..)"}]}
            (TyKind::FnDef(..) | TyKind::Closure(..), TyKind::FnDef(..) | TyKind::Closure(..)) => {
            (TyKind::Closure(x, _), TyKind::Closure(y, _)) if x == y => None,
                // FIXME: we're ignoring safety here. To be more correct, if we have one FnDef and one Closure,