[clang] [HLSL] Fix for build break introduced by #85662 (PR #85839)

[Farzon Lotfi via cfe-commits]

farzonl wrote:

builds should be back to green all 51 checks passed: https://github.com/llvm/llvm-project/commit/3ff67d8c8069b9f42efcbe90ad7edeb6d8117a31

https://github.com/llvm/llvm-project/pull/85839