[issue45144] Use subtests in test_peepholer

[Irit Katriel]

Change by Irit Katriel <iritkatriel at gmail.com>:


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keywords: +patch
pull_requests: +26667
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/28247

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue45144>
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