[clang] [codegen] Emit missing cleanups for stmt-expr and coro suspensions [take-2] (PR #85398)

[Utkarsh Saxena via cfe-commits]

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@@ -1105,19 +1105,24 @@ void CodeGenFunction::EmitNewArrayInitializer(
     }
 
     // Enter a partial-destruction Cleanup if necessary.
-    if (needsEHCleanup(DtorKind)) {
+    if (DtorKind) {
+      AllocaTrackerRAII AllocaTracker(*this);
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usx95 wrote:

Unfortunately, that is not the case. We do create more allocas in conditional branches in `pushFullExprCleanup`, for eg: create `cond-cleanup.save` allocas in `DominatingLLVMValue::save` ([src](https://github.com/llvm/llvm-project/blob/e93b5f5a4776ffea12d03652559dfdf8d421184c/clang/lib/CodeGen/CodeGenFunction.h#L5184)).


https://github.com/llvm/llvm-project/pull/85398