[issue29833] Avoid raising OverflowError if possible

[Serhiy Storchaka]

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


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dependencies: +Avoid raising OverflowError in truncate() if possible, Get rid of C limitation for shift count in right shift, bool of large range raises OverflowError

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue29833>
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