{"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"///"}]}
    /// Allows `[x; N]` where `x` is a constant (RFC 2203).
     Some("removed in favor of `#![feature(adt_const_params)]` and `#![feature(generic_const_exprs)]`"), 88369),
    (removed, const_in_array_repeat_expressions,  "1.51.0", Some(49147),