[issue42749] test_tcl failed on 32-bit POWER6 AIX 3.9: big int issue with 9223372036854775808

[Serhiy Storchaka]

Change by Serhiy Storchaka <storchaka+cpython at gmail.com>:


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pull_requests: +22811
pull_request: https://github.com/python/cpython/pull/23966

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<https://bugs.python.org/issue42749>
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