[clang] Fix build breakage from: #167948 (PR #168781)

[Erich Keane via cfe-commits]

erichkeane wrote:

> Please proceed, I haven't actually reverted it, more of a misclick.

Got it!  Enabled auto-merge as well, so as soon as CI succeeds, this will merge


https://github.com/llvm/llvm-project/pull/168781