Simple tensor -> pure tensor #1050

Job	Run time
onnx / linux-job	49s
unittests-extended / linux-job	38s
unittests-linux (3.10, linux.12xlarge, cpu) / linux-job	39s
unittests-linux (3.11, linux.12xlarge, cpu) / linux-job	35s
unittests-linux (3.8, linux.12xlarge, cpu) / linux-job	33s
unittests-linux (3.8, linux.g5.4xlarge.nvidia.gpu, cuda, 11.8) / linux-job	55s
unittests-linux (3.9, linux.12xlarge, cpu) / linux-job	36s
unittests-macos (3.10, macos-12) / macos-job	1m 49s
unittests-macos (3.11, macos-12) / macos-job	1m 14s
unittests-macos (3.8, macos-12) / macos-job	2m 10s
unittests-macos (3.8, macos-m1-12) / macos-job	1m 25s
unittests-macos (3.9, macos-12) / macos-job	2m 21s
unittests-windows (3.10, windows.4xlarge, cpu) / windows-job	2m 1s
unittests-windows (3.11, windows.4xlarge, cpu) / windows-job	8m 14s
unittests-windows (3.8, windows.4xlarge, cpu) / windows-job	2m 28s
unittests-windows (3.8, windows.g5.4xlarge.nvidia.gpu, cuda, 11.8) / windows-job	25m 42s
unittests-windows (3.9, windows.4xlarge, cpu) / windows-job	2m 24s
	54m 33s

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