[libcxx-commits] [libcxx] [libc++][C++03] Split libc++-specific tests for the frozen headers (PR #144093)

[Louis Dionne via libcxx-commits]

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ldionne wrote:

This is not necessary since it's linting the source code. We don't need to do that twice. The same applies to any other lint tests that check `libcxx/src`, CMake files, etc.

https://github.com/llvm/llvm-project/pull/144093