Fix EnumOrdinalizer. EnumOrdinalizer incorrectly selects enums for ordinalization (replacement of the enum values by integer ordinals) under a few circumstances. Also: - fixed quite a few of the units tests. - allow ordinalization even with access to values(). Bug: issue 8846. Change-Id: I9c22c1576a238d5f6b3a5f52b25b2ca697b83fad