Fix assignment of CacheOpResult::EnumCount The special enum value 'EnumCount' is used by EnumSize() to determine how large to make the PackedEnumMap::mPrivateData array. However, that enum entry was being assigned an incorrect value, leading to the array being constructed too small and causing a crash in PackedEnumMap's std::initializer_list constructor when it went beyond the size of the array to assign each of the necessary values. The fix is to remove the assignment of CacheOpResult::EnumCount and let it indicate the real number of entries in the enum. Bug: angleproject:4393 Test: end2end Change-Id: If9635c61e72aadc6527d416f83be18add8b24572 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2050026 Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>