gh-64490: varargs support for argument clinic and refactor print with AC

[isidentical]

• f(*args, /)
• f(x, y, *args, /)
• f(*args)
• f(x, y, *args)
• f(x, /, y, *args)
• f(x, *args, y=3)
• f(*args, y=3, z=5)

https://bugs.python.org/issue20291

• Issue: Argument Clinic should understand *args and **kwargs parameters #64490

[codecov]

Codecov Report

Merging #18609 into master will increase coverage by 1.12%.
The diff coverage is n/a.

@@ Coverage Diff @@## master #18609 +/- ## =========================================== + Coverage 82.08% 83.20% +1.12%  =========================================== Files 1956 1571 -385 Lines 589394 414936 -174458 Branches 44457 44482 +25 =========================================== - Hits 483778 345267 -138511 + Misses 95969 60023 -35946 + Partials 9647 9646 -1 

Impacted Files	Coverage Δ
Lib/distutils/tests/test_bdist_rpm.py	30.00% <0.00%> (-65.00%)	⬇️
Lib/distutils/command/bdist_rpm.py	7.63% <0.00%> (-56.88%)	⬇️
Lib/test/test_urllib2net.py	76.92% <0.00%> (-13.85%)	⬇️
Lib/test/test_smtpnet.py	78.57% <0.00%> (-7.15%)	⬇️
Lib/ftplib.py	63.85% <0.00%> (-6.06%)	⬇️
Lib/test/test_ftplib.py	87.11% <0.00%> (-4.72%)	⬇️
Tools/scripts/db2pickle.py	17.82% <0.00%> (-3.97%)	⬇️
Tools/scripts/pickle2db.py	16.98% <0.00%> (-3.78%)	⬇️
Lib/test/test_socket.py	71.94% <0.00%> (-3.77%)	⬇️
Lib/test/test_asyncio/test_base_events.py	91.84% <0.00%> (-3.30%)	⬇️
... and 446 more

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[serhiy-storchaka]

Interesting PR. Thank you that taken this issue Batuhan! 👍 But it will take a time to make a review.

[pablogsal]

@serhiy-storchaka Could you review this PR if you have the time? If you are busy I can finish the review myself and try to land it so it reaches 3.11 :)

[pablogsal]

@isidentical Can you rebase this and we can land it?

[bedevere-bot]

🤖 New build scheduled with the buildbot fleet by @isidentical for commit 4186327 🤖

If you want to schedule another build, you need to add the ":hammer: test-with-buildbots" label again.

[pablogsal]

@isidentical Land if the buildbots are happy. Don't forget to also change the docs for the argument clinic in the devguide with any updates!

[gpshead]

The Doc/howto/clinic.rst docs still need updating.