{"ast_node_type":"other","tokens":[{"end":111,"kind":"keyword","start":0,"text":"//"}]}
                // FIXME: we're ignoring safety here. To be more correct, if we have one FnDef and one Closure,
            (TyKind::FnDef(..) | TyKind::Closure(..), TyKind::FnDef(..) | TyKind::Closure(..)) => {
                // we should be coercing the closure to a fn pointer of the safety of the FnDef