[PATCH] libstdc++: Split up pstl/set.cc testcase

[Jonathan Wakely]

On Mon, 3 Jul 2023 at 23:14, Thomas Rodgers via Libstdc++
<libstdc++@gcc.gnu.org> wrote:
>
> This testcase is causing some timeout issues. This patch splits the
> testcase up by individual set algorithm.

I think the Apache license requires a notice saying the original file
was modified. A comment in each new file noting it was derived from
pstl/alg_sorting/set.cc (or whatever the file is called upstream)
should be sufficient.

OK with that change, thanks.