[clang] [CIR] Coerce record returns from memory like CreateCoercedLoad (PR #227482)

[Andy Kaylor via cfe-commits]

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@@ -295,6 +295,87 @@ static uint64_t coercionByteSize(mlir::Type ty, const mlir::DataLayout &dl) {
   return dl.getTypeSize(ty);
 }
 
+/// \p ty's size rounded up to its ABI alignment.
+static uint64_t getAllocSize(mlir::Type ty, const mlir::DataLayout &dl) {
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andykaylor wrote:

`CIRDataLayout::getTypeAllocSize()` already does this. Can we use that?

https://github.com/llvm/llvm-project/pull/227482