[libcxx-commits] [libcxx] [libc++] Add __new_at_least (PR #215813)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,h -- libcxx/include/__new/new_at_least.h libcxx/test/libcxx/language.support/support.dynamic/libcpp_allocate_at_least.pass.cpp libcxx/include/__configuration/attributes.h libcxx/include/__configuration/availability.h libcxx/include/__memory/allocate_at_least.h libcxx/include/__memory/allocator.h libcxx/include/__new/allocate.h --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/libcxx/include/__memory/allocate_at_least.h b/libcxx/include/__memory/allocate_at_least.h
index 44d86e013..8dce7692b 100644
--- a/libcxx/include/__memory/allocate_at_least.h
+++ b/libcxx/include/__memory/allocate_at_least.h
@@ -39,8 +39,7 @@ __allocate_at_least(_Alloc& __alloc, size_t __n) {
 }
 
 template <class _Tp>
-[[__nodiscard__]] _LIBCPP_CONSTEXPR __allocation_result<_Tp*>
-__allocate_at_least(allocator<_Tp>& __alloc, size_t __n) {
+[[__nodiscard__]] _LIBCPP_CONSTEXPR __allocation_result<_Tp*> __allocate_at_least(allocator<_Tp>& __alloc, size_t __n) {
   if (__libcpp_is_constant_evaluated()) {
     return {__alloc.allocate(__n), __n};
   } else {

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https://github.com/llvm/llvm-project/pull/215813