{"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":"if"}]}
        if ident.name == sym::cfg || ident.name == sym::cfg_attr {
        // performed on `Resolver::builtin_attrs`.
            let macro_kind = self.get_macro(res).map(|macro_data| macro_data.ext.macro_kind());