{"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"ObligationCauseCode::WhereClauseInExpr(def_id,"}]}
            ObligationCauseCode::WhereClauseInExpr(def_id, _, hir_id, idx) => {
        let (def_id, hir_id, idx, flavor) = match *error.obligation.cause.code().peel_derives() {
                (def_id, hir_id, idx, ClauseFlavor::Where)