_PyType_LookupByVersion returns NULL for types with static version tags

[kumaraditya303]

_PyType_LookupByVersion currently returns NULL for types such as int which has a fixed type version. This prevents the JIT from optimizing method loads on int to inline borrow. Since, the types has predefined version tags, assign_version_tag is never called on them so they are never added to the cache.

See PR for more details.

Linked PRs

• gh-146453: fix _PyType_LookupByVersion for types with fixed pre-defined version tags #146454