[PATCH] Add support for parsing ARM symbol variants on ELF targets

[Tim Northover]

> I don't think this is universally true. At least Joerg today was
> talking about an @GOT symbol that we didn't support.

Though having said that, it could just be cruft that binutils happened
to support before. Quite why whoever did that felt the need to change
it is beyond me. Standards? I win if I maximise the incompatible
number of those, right?

Cheers.

Tim.