[issue17490] Improve ast.literal_eval test suite coverage

[Batuhan Taskaya]

Change by Batuhan Taskaya <isidentical at gmail.com>:


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keywords: +patch
pull_requests: +21504
stage: needs patch -> patch review
pull_request: https://github.com/python/cpython/pull/22469

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue17490>
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