message: Fix Descriptor FrameRefType.
  Storage resources can be read and/or written by the shader. We must
  pessimistically assume that the shade reads, and then modifies these resources.
diff: @@ -787,7 +787,7 @@ FrameRefType GetRefType(VkDescriptorType descType)
  case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE:
  case VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER:
  case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER:
  - case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC: return eFrameRef_PartialWrite; break;
  + case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC: return eFrameRef_ReadBeforeWrite; break;
  default: RDCERR("Unexpected descriptor type");
  }
  