[PATCH 1/2] elf: Unify symbol address run-time calculation [BZ #19818]

[Maciej W. Rozycki]

On Mon, 19 Feb 2018, Andreas Schwab wrote:

> No need for double parens, since uses of arguments must already be
> properly parenthesized.

 Good point.  I have also recalled that we need to avoid matching SHN_ABS 
symbols in `determine_info' in 2/2, which is something I did originally, 
but then lost it as I experimented with 1/2 and forgot.  I'll respin with 
these issues addressed then.

  Maciej