[issue27169] __debug__ is not optimized out at compile time for anything but `if:` and `while:` blocks

[Serhiy Storchaka]

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


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dependencies: +Build-out an AST optimizer, moving some functionality out of the peephole optimizer

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue27169>
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