protected int getObjectSizerInvocations(LocalRegion region) {
    TestObjectSizer sizer = (TestObjectSizer) region.getEvictionAttributes().getObjectSizer();
    int result = sizer.invocations.get();
    region.getCache().getLogger().info("objectSizerInvocations=" + result);
    return result;
  }
A test of the when we will use the object sizer to determine the actual size of objects wrapped
in CacheDeserializables.



TODO - I was intending to add tests that have an index and object sizer, but it appears we don't
support indexes on regions with overflow to disk.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/SizingFlagDUnitTest.java