undefined in ANSI C.

http://farmdev.com/thoughts/24/what-does-the-def-star-variable-or-def-asterisk-parameter-syntax-do-in-python-/

The right entry type to use isn't clear; operator seems wrong, because *,**,@
aren't being used in expressions here.  I put them as 'statement'; 'syntax'
might be better.

Issue 2439: add pkgutils.get_data() as a convenience wrapper for the PEP 302 get_data() API (contributed by Paul Moore)

Some other minor updates in _warnings.c:
- make a function static
- rename a shadowing local variable

better performance.

number of splits.

Windows.

when it is run.

length of the list storing the warning options.

gcc's profile guided optimization.

'warnings' code in places where it was previously not possible (e.g., the
parser). It could also potentially lead to a speed-up in interpreter start-up
if the C version of the code (_warnings) is imported over the use of the
Python version in key places.

Closes issue #1631171.

the all_errors tuple.