[llvm] [Clang][HLSL] prevent phi codgen of isTokenLike types (PR #162363)

[Deric C. via llvm-commits]

https://github.com/Icohedron approved this pull request.

The change looks good to me and it successfully compiles the reduced shader I sent you over Teams. However, the original DML shaders are still having the same issue - hitting the same assertion. So this PR does not completely fix the issue.

I will send you some more shaders to test and debug.

https://github.com/llvm/llvm-project/pull/162363