[libc-commits] [libc] [libc] Use `LIBC_COPT_PUBLIC_PACKAGING` for hermetic and integration tests. (PR #79319)

[via libc-commits]

lntue wrote:

Current progress:
- All tests seem to work correctly in overlay mode
- Most tests seem to work correctly in full build mode - Currently `check-libc` failed at [3906/4117] with
`projects/libc/test/src/unistd/libc.test.src.unistd.getopt_test.__hermetic__.__build__` target.

https://github.com/llvm/llvm-project/pull/79319