{"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"assert!(binding.is_ambiguity_recursive());"}]}
        assert!(binding.is_ambiguity_recursive());
    fn new_warn_ambiguity_binding(&self, binding: NameBinding<'ra>) -> NameBinding<'ra> {
        self.arenas.alloc_name_binding(NameBindingData { warn_ambiguity: true, ..*binding })