[issue22783] Pickle: use NEWOBJ instead of NEWOBJ_EX if possible

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Updated patch addresses Antoine's comments. Also added few comments explaining binary data.

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Added file: http://bugs.python.org/file37470/pickle_newobj_2.patch

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<http://bugs.python.org/issue22783>
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