[libcxx-commits] [libcxx] [libc++] Simplify how the global stream tests are written (PR #66842)

[Louis Dionne via libcxx-commits]

ldionne wrote:

> In most configs, we do have `bash` set up to be available when running tests on Windows, but I did run into one case in one setup where the tests previously were skipped but now execute and fail due to the missing `echo` executable.

Interesting. But aren't we using the Lit builtin `echo` command? I don't think we should ever be trying to call an `echo` executable on the platform?

https://github.com/llvm/llvm-project/pull/66842