[clang] [Clang] Do not perform integral promotion if operands of expression `x ? : y` have the same type (PR #108837)

[Erich Keane via cfe-commits]

================
@@ -8785,14 +8785,11 @@ ExprResult Sema::ActOnConditionalOp(SourceLocation 
QuestionLoc,
       commonExpr = result.get();
     }
     // We usually want to apply unary conversions *before* saving, except
-    // in the special case of a C++ l-value conditional.
-    if (!(getLangOpts().CPlusPlus
-          && !commonExpr->isTypeDependent()
-          && commonExpr->getValueKind() == RHSExpr->getValueKind()
-          && commonExpr->isGLValue()
----------------
erichkeane wrote:

So I don't see how losing the above two value kind exceptions fix this?  Can 
you explain this better?

https://github.com/llvm/llvm-project/pull/108837
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