ffi: Add definition for PyType_GetModuleByDef

[jadedpasta]

This API is available starting in 3.11. It is not part of the Stable ABI.

PyType_GetModuleByDef searches the MRO of the given type for a module matching the given module spec. It can be useful for users use that pyo3_ffi directly and want to support multiple interpreters/per interpreter GIL. It is useful to obtain access to the module state from special methods like tp_new that can't use the METH_METHOD calling convention.

I am not sure how to check if this API is available on PyPy. If someone could give me a pointer to where to check, that would be great!

[codspeed-hq]

CodSpeed Performance Report

Merging #3734 will degrade performances by 10.44%

_{Comparing jadedpasta:ffi-pytype-getmodulebydef (83f0f22) with main (f8878a7)}

🎉 Hooray! codspeed-rust just leveled up to 2.3.3!

A heads-up, this is a breaking change and it might affect your current performance baseline a bit. But here's the exciting part - it's packed with new, cool features and promises improved result stability 🥳!
Curious about what's new? Visit our releases page to delve into all the awesome details about this new version.

Summary

⚡ 1 improvements
❌ 2 regressions
✅ 75 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	jadedpasta:ffi-pytype-getmodulebydef	Change
❌	extract_str_downcast_fail	238.3 ns	266.1 ns	-10.44%
❌	extract_int_downcast_fail	238.3 ns	266.1 ns	-10.44%
⚡	list_via_downcast	153.9 ns	126.1 ns	+22.03%

[davidhewitt]

Thanks for the PR! One tiny adjustment regarding PyPy, and then this should be good to merge. Also please squash the commits, sadly with GitHub Merge Queue we can't do that automatically.

[davidhewitt]

Thanks! 👍