{"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"self.ribs[ns].push(self_type_rib);"}]}
        self.ribs[ns].push(self_type_rib);
        self_type_rib.bindings.insert(Ident::with_dummy_span(kw::SelfUpper), self_res);
        f(self);