tree d93b2c32645147cb1398b7ced2ee42eec9a29da5
parent 9dae7eca1f9d55bed5942e6d0a1810bc091efe54
author Dave Houlton <daveh@lunarg.com> 1488499210 -0700
committer Dave Houlton <daveh@lunarg.com> 1488910782 -0700

layers: Add VUs 1275, 1276, 1277 related to gh1507

Adds 3 new valid usage checks related to the bugfix, and the
layer_validation_tests code to exercise 2 of them. The third check,
01277, cannot be provoked by a test because it would require a
compressed texture format with block z-dimension > 1, which does
not (currently) exist for Vulkan.

Change-Id: I6c467e64c420b6a453af57f7ff86e1465e132988