Merge llvm-project release/16.x llvmorg-16.0.4-0-gae42196bc493
This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-16.0.4-0-gae42196bc493 (aka 16.0.4 release).
PR: 271047
MFC after: 1 month
(cherry picked from commit a324c34037ef2e1101962fca4ad0c021253288e1)