tests: GH421 reflect vkAllocateDescriptorSets test
tests: GH421 reflect vkAllocateDescriptorSets test

InvalidDescriptorSetLayout test was added with 772fcd1c
KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools