TypeAliasType.__module__ can segfault

[JelleZijlstra]

>>> ns = {}
>>> exec("type A = int", ns, ns)
>>> ns["A"].__module__
zsh: segmentation fault  ./python.exe

I will propose a fix.

Linked PRs

• gh-104879: Fix TypeAliasType.__module__ in exec() #104881
• [3.12] gh-104879: Fix TypeAliasType.__module__ in exec() (GH-104881) #104890