{"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"if"}]}
        if !tcx.any_free_region_meets(&return_ty, |r| r.as_var() == fr) {
        debug!("give_name_if_anonymous_region_appears_in_output: return_ty = {:?}", return_ty);
            return None;