[llvm] GlobalsModRef, ValueTracking: Look through threadlocal.address intrinsic (PR #88418)

[Matthias Braun via llvm-commits]

MatzeB wrote:

Found https://discourse.llvm.org/t/address-thread-identification-problems-with-coroutine/62015 and seeing now why this patch is a problem before coroutine splitting... Though still need to catch up on whether we actually developed any further mechanisms in the meantime to maybe express/mark coroutines before/after splitting.

https://github.com/llvm/llvm-project/pull/88418