{"ast_node_type":"import","tokens":[{"end":101,"kind":"keyword","start":0,"text":"//"}]}
            // `layout_for_cpp_like_fallback` will be `Some` if we want to use the fallback encoding.
        ty::Adt(def, args) => {
            let layout_for_cpp_like_fallback = if cpp_like_debuginfo && def.is_enum() {