{"ast_node_type":"other","tokens":[{"end":35,"kind":"keyword","start":0,"text":"(Some(f),"}]}
            (Some(f), Some(o)) => {
        match (self.to_error_region(errci.fr), self.to_error_region(errci.outlived_fr)) {
                self.maybe_suggest_constrain_dyn_trait_impl(&mut diag, f, o, category);