A recent change(s) eliminated the crash that was occuring with the KHR-GLES3.copy_tex_image_conversions.required.* and KHR-GLES3.copy_tex_image_conversions.forbidden.* tests. The still-failing tests are getting 2 types of Vulkan validation errors. 1) The "required" tests get errors about using the VK_FORMAT_R8G8B8A8_UNORM descriptor-set format when an SINT/UINT component type is required. 2) The "forbidden" tests are getting errors about using more valid memory objects than allowed. Bug: angleproject:3458 Bug: angleproject:3800 Change-Id: I9536da6a2c888413ba0ab789a4dc9559d40fcf1b Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754391Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com> Reviewed-by: Ian Elliott <ianelliott@google.com> Commit-Queue: Ian Elliott <ianelliott@google.com>