[clang] [CIR][CodeGen] Support DesignatedInitUpdateExpr in constant emission (PR #194238)

[Andy Kaylor via cfe-commits]

================
@@ -669,7 +781,7 @@ bool ConstRecordBuilder::build(InitListExpr *ile, bool allowOverwrite) {
       continue;
     }
 
-    if (zeroInitPadding &&
+    if (zeroInitPadding && !allowOverwrite &&
----------------
andykaylor wrote:

Why did you add this?

https://github.com/llvm/llvm-project/pull/194238