sRecursively();

    // oilpan has *some* numerics aggregated.
    checkDumpNumericsAndDiagnostics(oilpanDump, {
      objects_count: new Scalar(unitlessNumber_smallerIsBetter, 7),
      inner_size: 768,
      outer_size: 3072
    }, {});

    // oilpan/bucket2 has *all* numerics aggregated (except for size).
    checkDumpNumericsAndDiagnostics(oilpanBucket2Dump, {
      objects_count: new Scalar(unitlessNumber_smallerIsBetter, 4),
      inner_size: 512,
      outer_size: 2048
    }, {});

    // oilpan/buc