{"ast_node_type":"enum","tokens":[{"end":76,"kind":"keyword","start":0,"text":"//"}]}
        // with an enum like `#[repr(u8)] enum Enum { A(DataA), B(DataB), }`
        // which is why we only warn about really_tagged_union reprs from https://rust.tf/rfc2195
        // but exempt enums with unit ctors like C's (e.g. from rust-bindgen)