[flang] [llvm] [OpenMP] Allow overriding clause-allowed-on-directive in decomposition (PR #227418)

[Abid Qadeer via llvm-commits]

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@@ -170,6 +170,11 @@ struct Helper {
     return std::nullopt;
   }
   std::optional<Object> getLoopIterVar() { return std::nullopt; }
+  bool isClauseAllowedOnDirective(llvm::omp::Clause clauseId,
+                                  llvm::omp::Directive dirId,
+                                  llvm::omp::Version version) {
+    return llvm::omp::isAllowedClauseForDirective(dirId, clauseId, version);
+  }
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abidh wrote:

nit: It would also be nice to have a unittest with a helper that doesn't just forward, to show that the override really changes where a clause is placed.

https://github.com/llvm/llvm-project/pull/227418