{"ast_node_type":"variable","tokens":[{"end":58,"kind":"keyword","start":0,"text":"let"}]}
            let next_outer_ty = cx.val_ty(next_outer_arg);
            let next_outer_arg = outer_args[outer_pos + 1];
            // FIXME(ZuseZ4): We should add support for Vec here too, but it's less urgent since