[3.8] bpo-26219: Fix compiler warning in _PyCode_InitOpcache() (GH-13997) by miss-islington · Pull Request #14000 · python/cpython

@vstinner @miss-islington

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Fix MSVC warning:

    objects\codeobject.c(285): warning C4244: '=':
    conversion from 'Py_ssize_t' to 'unsigned char',
    possible loss of data
(cherry picked from commit 376ce98)

Co-authored-by: Victor Stinner <vstinner@redhat.com>

vstinner