[llvm] [DEBUGINFO] Propagate debug metadata for sext SDNode. (PR #135971)

[Alexander Peskov via llvm-commits]

apeskov wrote:

> does this problem occur a few lines down?

Yes, it does. I extended test to cover `zext-zext` case as well. I checkd, frontend generates similar kind of IR in case of `unsigned char` local variable.

> just one nit on the test from me.

I don't see any nit comments about test itself. Perhaps you forgot press "submit" button for review.

https://github.com/llvm/llvm-project/pull/135971