check to_copy args in vulkan_partitioner (#6215) #4548

Job	Run time
build-demo-ios / macos-job	13m 7s
build-frameworks-ios / macos-job	28m 11s
build-benchmark-app / macos-job	23m 9s
upload-demo-ios	18s
test-demo-ios / mobile-job (ios)	15m 19s
upload-frameworks-ios	22s
	1h 20m 26s

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