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

[via cfe-commits]

vitor1001 wrote:

> It appears to be breaking CUDA tests: https://lab.llvm.org/buildbot/#/builders/69/builds/22559

Strange. Do you have any ideas why `decltype` is not working?


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