[issue29465] Add _PyObject_FastCall() to reduce stack consumption

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Awesome! This looks fantastic! I need to check the patch very carefully to be sure that we haven't missed something important.

Isn't the Python directory more appropriate place for call.c?

----------
stage:  -> patch review

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue29465>
_______________________________________