{"ast_node_type":"function","tokens":[{"end":89,"kind":"keyword","start":0,"text":"fn"}]}
    fn check_mac_def(&mut self, cx: &crate::EarlyContext<'_>, mc: &rustc_ast::MacroDef) {
impl EarlyLintPass for Expr2024 {
        self.check_tokens(cx, &mc.body.tokens);