[clang] [clang][CodeGen] Emit file-scope compound literals in a constant context (PR #221390)

[Eli Friedman via cfe-commits]

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@@ -22210,6 +22210,52 @@ bool Expr::EvaluateAsInitializer(const ASTContext &Ctx, const VarDecl *VD,
          CheckMemoryLeaks(Info);
 }
 
+bool Expr::EvaluateAsConstantInitializer(EvalResult &Result,
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efriedma-quic wrote:

This looks extremely similar to EvaluateAsConstantExpr?  Can we reuse that?  (Maybe add a new ConstantExprKind if necessary.)

https://github.com/llvm/llvm-project/pull/221390