{"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":"Some(\"split"}]}
     Some("split into finer-grained feature gates"), 85109),
    (removed, const_fn, "1.54.0", Some(57563),
    /// Allows const generic types (e.g. `struct Foo<const N: usize>(...);`).