[lld] r248380 - Print more information about duplicated symbols.

[Rafael Espíndola via llvm-commits]

> There's only one ELF linker in LLD now, right? Should we rename the test
> directory (and any lingering remnants) to ELF, dropping the '2' suffix, now?

Not yet. Only the old COFF linker was deleted for now.

Cheers,
Rafael