[clang] [Clang][OpenMP] Fixed an assertion when `#pragma omp declare simd` or `#pragma omp declare variant` is followed by another OpenMP declarative directive containing a qualified identifier (PR #217875)

[Shengxin Pei via cfe-commits]

https://github.com/TPPPP72 closed https://github.com/llvm/llvm-project/pull/217875