[clang] [Clang][OpenMP] Validate prefer_type fr()/attr() arguments in append_args clause (PR #212307)

[Alexey Bataev via cfe-commits]

================
@@ -0,0 +1,79 @@
+// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fopenmp -fopenmp-version=60 \
----------------
alexey-bataev wrote:

Add tests for PCH

https://github.com/llvm/llvm-project/pull/212307