[PyPer] More at::empty -> at::detail::empty_cpu

[hlu1]

Summary:

• Add more variants to create_empty_from to take more args, like dtype/layout/device.
• Clean up stray at::empty uses, mostly in the out variants.

Reviewed By: ajyu

Differential Revision: D26799900

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💊 CI failures summary and remediations

As of commit 49a699e (more details on the Dr. CI page):

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• 1/2 failures possibly* introduced in this PR
  • 1/1 non-scanned failure(s)
• 1/2 broken upstream at merge base 795ed5c on Mar 04 from 7:10pm to 10:11pm

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🚧 1 fixed upstream failure:

These were probably caused by upstream breakages that were already fixed.

Please rebase on the viable/strict branch (expand for instructions)

If your commit is older than viable/strict, run these commands:

git fetch https://github.com/pytorch/pytorch viable/strict
git rebase FETCH_HEAD

• pytorch_linux_backward_compatibility_check_test on Mar 04 from 7:10pm to 10:11pm (17495e0 - 8bac382)
  • 🔁 rerun

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[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D26799900

[facebook-github-bot]

This pull request has been merged in 63e0e88.