[clang] [clang] Fix 71315698c9 in presence of incomplete types (PR #114095)

[via cfe-commits]

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@@ -8900,7 +8900,8 @@ void Sema::CheckMemaccessArguments(const CallExpr *Call,
           << Call->getCallee()->getSourceRange());
     else if (const auto *RT = PointeeTy->getAs<RecordType>()) {
 
-      bool IsTriviallyCopyableCXXRecord =
+      bool MayBeTriviallyCopyableCXXRecord =
+          RT->isIncompleteType() ||
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serge-sans-paille wrote:

According to https://godbolt.org/z/xcnb154de having fields that point to incomplete types does not make you non trivially copyable, so I'm not even sure it reduces the quality of the original warning.

https://github.com/llvm/llvm-project/pull/114095