{"ast_node_type":"function","tokens":[{"end":71,"kind":"keyword","start":0,"text":"fn"}]}
    fn visit_path(&mut self, path: &hir::Path<'tcx>, _id: hir::HirId) {
impl<'tcx> Visitor<'tcx> for CheckTraitImplStable<'tcx> {
        if let Some(def_id) = path.res.opt_def_id()