[libcxx-commits] [libcxx] [libc++] fixing missing forward declarations of uses_allocator_construction_args (PR #67044)

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phyBrackets wrote:

@philnik777 does this looks good to you? Other than format issue, I am not sure what's the actual issue even running `git clang-format` on the commit , seems like CI doesn't like the formatting and so complaining. 

https://github.com/llvm/llvm-project/pull/67044