[clang] Add Clang attribute to ensure that fields are initialized explicitly (PR #102040)

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github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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``````````bash
git-clang-format --diff a9ffb719bc323588b6b60fbf227db8104a81310e 1695451175d65cdda8647e273d8b8643629aea54 --extensions cpp,h -- clang/include/clang/AST/DeclCXX.h clang/lib/AST/DeclCXX.cpp clang/lib/Sema/SemaDeclAttr.cpp clang/lib/Sema/SemaInit.cpp clang/test/SemaCXX/uninitialized.cpp
``````````

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<details>
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Sema/SemaInit.cpp b/clang/lib/Sema/SemaInit.cpp
index 60e35f92f8..6ec7159413 100644
--- a/clang/lib/Sema/SemaInit.cpp
+++ b/clang/lib/Sema/SemaInit.cpp
@@ -4557,7 +4557,8 @@ static void TryConstructorInitialization(Sema &S,
     if (!IsListInit && Kind.getKind() == InitializationKind::IK_Default &&
         DestRecordDecl != nullptr && DestRecordDecl->isAggregate() &&
         DestRecordDecl->hasUninitializedExplicitInitFields()) {
-      S.Diag(Kind.getLocation(), diag::warn_field_requires_explicit_init) << "in class";
+      S.Diag(Kind.getLocation(), diag::warn_field_requires_explicit_init)
+          << "in class";
     }
 
     // C++11 [dcl.init]p6:

``````````

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https://github.com/llvm/llvm-project/pull/102040