As extra validation that new tests are indeed correct.

Bug: angleproject:3580
Change-Id: I4792bd8e26f96ab6c988f2605f053ce5789a782f
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2577818Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>