{"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"OrphanCheckErr::UncoveredTyParams(UncoveredTyParams"}]}
        OrphanCheckErr::UncoveredTyParams(UncoveredTyParams { uncovered, local_ty }) => {
    result.map_err(|err| match err {
            let mut collector =