Add more signatures for builtin functions and methods

[serhiy-storchaka]

Feature or enhancement

#117671 adds many signatures for builtin functions and methods. But not all of them need support of multi-signatures. I opened this issue to add signatures for builtin objects which do not require new features.

Linked PRs

• gh-117764: Add docstrings and signatures for the __replace__ methods #117768
• gh-117764: Fix and add signatures for many builtins #117769
• gh-117764: Add signatures for some functions in the sys module #117770
• gh-117764: Add signatures for functions in the faulthandler module #117771
• gh-117764: Add signatures and improve docstrings in the _thread module #117772
• gh-117764: Add signatures for __reduce__ and __reduce_ex__ in the _io module #117773
• gh-117764: Add signatures for some objects in the itertools module #117774
• gh-117764: Add signature for functools.partial() #117775
• gh-117764: Add signatures in the atexit module #117776
• gh-117764: Add a signature for signal.set_wakeup_fd() #117777
• [3.12] gh-117764: Add signatures for functions in the faulthandler module (GH-117771) #117806
• gh-117764: Add docstrings and signatures for the types of None, Ellipsis and NotImplemented #117813
• gh-117764: Add more tests for signatures of builtins #117816

[serhiy-storchaka]

And finally, #117816 adds extensive tests for signatures of builtins, including just fixed.

[serhiy-storchaka]

For other changes, I'll open separate issues.

Thank you for all your reviews @erlend-aasland.