[issue30416] constant folding opens compiler to quadratic time hashing

[Serhiy Storchaka]

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


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nosy: +benjamin.peterson
priority: normal -> deferred blocker
versions: +Python 2.7 -Python 3.7

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue30416>
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