[clang] Add missing intrinsics to cuda headers (PR #143664)

[Artem Belevich via cfe-commits]

Artem-B wrote:

It's a C++-11 feature. Tests still include c++98. We do not intend to keep everything working with c++98 (we already use c++11 in other headers), but we should not break it either. In this case, you can just enable the new stuff for c++11 or newer standards.

https://github.com/llvm/llvm-project/pull/143664