[clang] [CIR] Add pass_object_size hidden parameter support (PR #191482)

[Andy Kaylor via cfe-commits]

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@@ -1396,8 +1401,15 @@ void CIRGenFunction::emitCallArgs(
     if (!ps)
       return;
 
-    assert(!cir::MissingFeatures::opCallImplicitObjectSizeArgs());
-    cgm.errorNYI("emit implicit object size for call arg");
+    const ASTContext &astContext = getContext();
+    QualType sizeTy = astContext.getSizeType();
+    cir::IntType t = builder.getUIntNTy(astContext.getTypeSize(sizeTy));
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andykaylor wrote:

I think you can just use `cgm.sizeTy`.

https://github.com/llvm/llvm-project/pull/191482