message: Only provide mutable format list when needed
diff: @@ -421,8 +421,8 @@ void main()
  TestCase FinaliseTest(VkCommandBuffer cmd, TestCase test)
  {
  - VkImageCreateFlags flags =
  - (test.fmt.texFmt != test.fmt.viewFmt) ? VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT : 0;
  + bool mutableFmt = (test.fmt.texFmt != test.fmt.viewFmt);
  + VkImageCreateFlags flags = mutableFmt ? VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT : 0;
  VkImageUsageFlags usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
  @@ -474,7 +474,7 @@ void main()
  vkh::ImageCreateInfo(
  w, h, d, test.fmt.texFmt, usage, test.isMSAA ? 1 : texMips, test.isArray ? texSlices : 1,
  test.isMSAA ? VkSampleCountFlagBits(texSamples) : VK_SAMPLE_COUNT_1_BIT, flags)
  - .next(hasExt(VK_KHR_IMAGE_FORMAT_LIST_EXTENSION_NAME) ? &formatList : NULL),
  + .next(hasExt(VK_KHR_IMAGE_FORMAT_LIST_EXTENSION_NAME) && mutableFmt ? &formatList : NULL),
  VmaAllocationCreateInfo({0, VMA_MEMORY_USAGE_GPU_ONLY}));
  test.view = createImageView(vkh::ImageViewCreateInfo(
  test.res.image, test.viewType, test.fmt.viewFmt, {}, vkh::ImageSubresourceRange(viewAspect)));
  