distribute cxx_builtin + avoid duplicating list of distrib files

4 jobs for master
Status Name Job ID Coverage
  Git Update
failed git-update #425322
nix

 
  Tests
skipped tests-on-llvm-10 #425324
allowed to fail manual
skipped tests-on-llvm-11 #425325
nix
skipped tests-on-llvm-9 #425323
nix
 
Name Stage Failure
failed
git-update Git Update There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job log