static void verify_scaled_initial(size_t initial_heap_size) {
    MarkSweepPolicy msp;
    msp.initialize_all();

    size_t expected = msp.scale_by_NewRatio_aligned(initial_heap_size);
    assert(msp.initial_gen0_size() == expected, err_msg("%zu != %zu", msp.initial_gen0_size(), expected));
    assert(FLAG_IS_ERGO(NewSize) && NewSize == expected,
        err_msg("NewSize should have been set ergonomically to %zu, but was %zu", expected, NewSize));
  }
  static void verify_initial(size_t expected) {
    MarkSweepPolicy msp;
    msp.initialize_all();

    assert(msp.initial_gen0_size() == expected, err_msg("%zu != %zu", msp.initial_gen0_size(), expected));
  }