[issue16330] Use surrogate-related macros

[STINNER Victor]

STINNER Victor added the comment:

"But not all surrogate-related code uses this macros.  I suppose this is done inadvertently, somewhere the macro and naked code used in neighboring lines."

Yeah, I forgot to use the new macros in these files. Thanks for your patch, I applied it. I also fixed *IS*() macros to add parenthesis around the argument.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue16330>
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