Merge llvm-project release/16.x llvmorg-16.0.6-0-g7cbf1a259152
This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-16.0.6-0-g7cbf1a259152 (aka 16.0.6 release).
PR: 271047
MFC after: 1 month
(cherry picked from commit e048f78b21438144bab781f2ba9ee33a2aae6772)