{"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"//"}]}
    // All the built-in macro attributes are "words" at the moment.
pub(crate) fn check_builtin_macro_attribute(ecx: &ExtCtxt<'_>, meta_item: &MetaItem, name: Symbol) {
    let template = AttributeTemplate { word: true, ..Default::default() };