[libcxx-commits] [libcxx] [libc++] Make std::allocator always trivially default constructible (PR #169914)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions h,cpp -- libcxx/test/libcxx/memory/allocator_triviality.compile.pass.cpp libcxx/test/libcxx/memory/allocator_triviality.deprecated_abi.compile.pass.cpp libcxx/include/__memory/allocator.h libcxx/test/std/utilities/optional/optional.specalg/make_optional_explicit.pass.cpp libcxx/test/std/utilities/optional/optional.specalg/make_optional_explicit_initializer_list.pass.cpp --diff_from_common_commit
``````````

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``````````diff
diff --git a/libcxx/include/__memory/allocator.h b/libcxx/include/__memory/allocator.h
index 30bfc267d..1c96a2ab6 100644
--- a/libcxx/include/__memory/allocator.h
+++ b/libcxx/include/__memory/allocator.h
@@ -62,7 +62,7 @@ template <class _Tp>
 class allocator
 // TODO(LLVM 24): Remove the opt-out
 #ifdef _LIBCPP_DEPRECATED_ABI_NON_TRIVIAL_ALLOCATOR
-  : __non_trivially_default_constructible_if<!is_void<_Tp>::value, allocator<_Tp> >
+    : __non_trivially_default_constructible_if<!is_void<_Tp>::value, allocator<_Tp> >
 #endif
 {
   static_assert(!is_const<_Tp>::value, "std::allocator does not support const types");

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https://github.com/llvm/llvm-project/pull/169914