{"ast_node_type":"function","tokens":[{"end":48,"kind":"keyword","start":0,"text":"fn"}]}
    fn visit_item(&mut self, i: &'a ast::Item) {
impl<'a> Visitor<'a> for InnerItemLinter<'_> {
        if let Some(attr) = attr::find_by_name(&i.attrs, sym::rustc_test_marker) {