Updates LLVM usage to match [2fa4186d4e1c](https://github.com/llvm/llvm-project/commit/2fa4186d4e1c) PiperOrigin-RevId: 356383544 Change-Id: Ie6e1f60198b8aa62a279e755e0234ee00854868d
Updates LLVM usage to match [2fa4186d4e1c](https://github.com/llvm/llvm-project/commit/2fa4186d4e1c) PiperOrigin-RevId: 356383544 Change-Id: Ie6e1f60198b8aa62a279e755e0234ee00854868d