[libcxx-commits] [libcxx] [libcxx][test] Fix empty.gen selftest on windows (PR #69403)

[Louis Dionne via libcxx-commits]

ldionne wrote:

> For the record this problem does not show up when running from bash on windows, so feel free to close this PR if it is not of much interest.

Oh, and IMO we want to use the builtin Lit shell everywhere as much as possible, so anything that goes against that is worth fixing.

https://github.com/llvm/llvm-project/pull/69403