[clang] [flang] [llvm] [CLANG][OpenMP] Add support for OpenMP6.0 transparent clause (PR #166810)

[Abhinav Gaba via llvm-commits]

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abhinavgaba wrote:

For `threadset`, `KindLoc` is getting passed explicitly, and used in the `Create`. Do we need that for transparent too?

https://github.com/llvm/llvm-project/pull/166810