{"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"//"}]}
    // `Const` would regress `rfc-2632-const-trait-impl/mbe-dyn-const-2015.rs`.
    // contain the number of potential regressions esp. in MBE code.
    // `Not` would regress `dyn!(...)` macro calls in Rust 2015.