[clang] [llvm] [AMDGPU] Add a type for the named barrier (PR #113614)

[Jan Patrick Lehr via cfe-commits]

jplehr wrote:

> I just pushed a fix in [75252e2](https://github.com/llvm/llvm-project/commit/75252e29ea6a0959f3c1670e641a03fc18fc65fa).

I see another error in one of our bots for this patch: https://lab.llvm.org/staging/#/builders/130/builds/7112

https://github.com/llvm/llvm-project/pull/113614