[flang] [clang] [libc] [compiler-rt] [llvm] [llvm-gsymutil] Fix assert failure on FileEntry.Dir empty (PR #79926)

[Greg Clayton via cfe-commits]

https://github.com/clayborg commented:

Just remove the "--num-threads" option from the test yaml file and this is good to go.

https://github.com/llvm/llvm-project/pull/79926