[clang] [Clang][OpenMP] Fixed an assertion on omp taskloop transparent (PR #200663)

[Aaron Ballman via cfe-commits]

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@@ -17926,6 +17926,11 @@ OMPClause *SemaOpenMP::ActOnOpenMPTransparentClause(Expr *ImpexTypeArg,
                                                     SourceLocation EndLoc) {
   Stmt *HelperValStmt = nullptr;
   OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
+
+  if (!isAllowedClauseForDirective(DKind, OMPC_transparent,
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AaronBallman wrote:

Assertion failures indicate that we've gotten the compiler into an incorrect state; can you explain why turning the assertion into an `if` is the correct fix?

(Btw, was an LLM involved in this change?)

https://github.com/llvm/llvm-project/pull/200663