{"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"//"}]}
        // - casting between `dyn for<'a> Trait<fn(&'a u8)>` and `dyn Trait<fn(&'static u8)>` is OK
        // For example:
        // - casting between `dyn Trait<for<'a> fn(&'a u8)>` and either of the above is UB