Emit execution mode of type per entry point once. Emit SPIRV capability once per shader program.#4189

csyonghe merged 5 commits intoshader-slang:mastershader-slang/slang:masterfrom

ArielG-NV:remove-multi-opCapability-compute-derivativeArielG-NV/slang:remove-multi-opCapability-compute-derivativeCopy head branch name to clipboard