[issue42147] Micro optimization for longrange iteration if step is 1

[Dong-hee Na]

Change by Dong-hee Na <donghee.na at python.org>:


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keywords: +patch
pull_requests: +21886
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/22971

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42147>
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