spirv-val: Add SPV_KHR_ray_tracing_position_fetch#6539

spencer-lunarg wants to merge 1 commit intoKhronosGroup:mainKhronosGroup/SPIRV-Tools:mainfrom

spencer-lunarg:spencer-lunarg-ray-fetch-positionspencer-lunarg/SPIRV-Tools:spencer-lunarg-ray-fetch-positionCopy head branch name to clipboard