[llvm] [NFC] Fixed test case fail caused by the patch [SelectionDAG] Folding ZERO-EXTEND/SIGN_EXTEND poison to Poison value in getNode #122741 (PR #136636)

[Phoebe Wang via llvm-commits]

phoebewang wrote:

#122741 had been reverted. Should these be moved to the the reland patch?

https://github.com/llvm/llvm-project/pull/136636