[Bug libstdc++/101228] #include <execution> triggers Intel TBB warning for tbb/task.h

[kip at thevertigo dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101228

--- Comment #1 from Kip Warner <kip at thevertigo dot com> ---
Suggestion: Maybe a unit test that includes all the standard STL headers, does
nothing with them, and that's expected to emit no warnings would mitigate
problems like this occurring in the future.