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

[Abhinav Gaba via llvm-commits]

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@@ -608,6 +617,16 @@ const char *clang::getOpenMPSimpleClauseTypeName(OpenMPClauseKind Kind,
 #include "clang/Basic/OpenMPKinds.def"
     }
     llvm_unreachable("Invalid OpenMP 'threadset' clause modifier");
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abhinavgaba wrote:

We should update this to say `argument` as well, but that's not related to this PR.

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