[clang] [X86][Clang] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - add AVX512 KTEST/KORTEST intrinsics to be used in constexpr (PR #166103)

[Simon Pilgrim via cfe-commits]

RKSimon wrote:

@rturrado have you been able to investigate the CI crashes?

https://github.com/llvm/llvm-project/pull/166103