[libcxx-commits] [libcxx] [libcxx][NFC] Consolidate testing concept CanBePiped (PR #80154)

[Konstantin Varlamov via libcxx-commits]

https://github.com/var-const commented:

Thanks, this is a nice refactoring! Just wanted to double-check whether a couple of these files need to include `test_range.h` now (or perhaps they aren't actually using `CanBePiped`?). Other than that, LGTM.

https://github.com/llvm/llvm-project/pull/80154