{"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"lint_callback!(self,"}]}
        lint_callback!(self, check_poly_trait_ref, t);
    fn visit_poly_trait_ref(&mut self, t: &'ast ast::PolyTraitRef) {
        ast_visit::walk_poly_trait_ref(self, t);