D26399: [ELF] - Implemented -stats command line option.

[George Rimar via llvm-commits]

>ruiu added a comment.
>
>We can get the same information using "time" or "perf" command, so I think it is not necessary. We probably should just ignore the flag.

I'll ignore it for now.

At the same time perf is unable to measure time of raw linking (without writing to disk), or a time of
versioning symbols. This patch does not do it either yet, but it might have it.

George.