message: Update fail_db for CR 21.43.21438
diff: - List of known fails.
  % The list is unordered and contains information about commonly used platforms / configurations.
  % Our goal is to maintain this list for Linux, macOS and Windows with reasonably new compilers.
  % Note, that it's important which C++ compiler was used.
  % LLVM bugs in released versions, that we have to workaround by applying patches (see llvm_patches
  % folder). The recommended way to build LLVM on Unix is to use "alloy.py".
  %
  + List of known fails.
  +./tests/funcptr-varying-3.ispc runfail xe64 gen9-x8 unspec Linux LLVM 12.0 clang++12.0 O0 spv *
  +./tests/recursion-forward-func-decl.ispc runfail xe64 gen9-x8 unspec Linux LLVM 12.0 clang++12.0 O0 spv *
  +./tests/recursion.ispc runfail xe64 gen9-x8 unspec Linux LLVM 12.0 clang++12.0 O0 spv *
  +./tests/funcptr-varying-3.ispc runfail xe64 gen9-x16 unspec Linux LLVM 12.0 clang++12.0 O0 spv *
  +./tests/recursion-forward-func-decl.ispc runfail xe64 gen9-x16 unspec Linux LLVM 12.0 clang++12.0 O0 spv *
  +./tests/recursion.ispc runfail xe64 gen9-x16 unspec Linux LLVM 12.0 clang++12.0 O0 spv *
  ./tests/short-vec-6.ispc runfail xe64 gen9-x8 unspec Linux LLVM 12.0 clang++12.0 O0 spv *
  ./tests/short-vec-6.ispc runfail xe64 gen9-x16 unspec Linux LLVM 12.0 clang++12.0 O0 spv *
  