Currently we limit the maximum of State bits to 64 for performance
consideration. To accommodate new ES31 states, we have to pick and
squash some existing bits which are less hot.

Bug: angleproject:2814

Change-Id: I8fc19286bbf8d8273949da8d986a8b1587fa105e
Reviewed-on: https://chromium-review.googlesource.com/1227069Reviewed-by: Jie A Chen <jie.a.chen@intel.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jie A Chen <jie.a.chen@intel.com>