[clang] [llvm] [clang][OpenMP] New OpenMP 6.0 assumption clause, 'no_openmp_constructs' (PR #125933)

[Valentin Clement バレンタイン クレメン via cfe-commits]

clementval wrote:

This breaks falling build bots. Can you fix or revert please?

https://github.com/llvm/llvm-project/pull/125933