[clang] [Sema] Fix lifetime extension for temporaries in range-based for loops in C++23 (PR #145164)

[Haojian Wu via cfe-commits]

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@@ -1304,6 +1304,13 @@ checkExprLifetimeImpl(Sema &SemaRef, const InitializedEntity *InitEntity,
   if (LK == LK_FullExpression)
     return;
 
+  if (LK == LK_Extended && SemaRef.getLangOpts().CPlusPlus23) {
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hokein wrote:

Is the `LK == LK_Extended` check necessary here? I think we can simply bail out in this case, regardless of the LK value.

https://github.com/llvm/llvm-project/pull/145164