[PATCH] D29929: [ELF] - Do not segfault when using -r and section groups.

[George Rimar via llvm-commits]

>Could you report a bug with them? I think the relevant ELF spec part is:
>
>--------------------------------------
> There may not be non-symbol references to the sections comprising a group from outside the group, for example, use of a group >member's section header index in an sh_link or sh_info member.
>----------------------------

Cool, thanks. I'll report them tomorrow.
(probably will check the head gas to be sure issue is still there for them, my gas in tests was 2.27).

George.