[patch] Document the restriction on removing a global from a COMDAT

[Rafael Espíndola]

ping

On 8 October 2014 10:21, Rafael Espíndola <rafael.espindola at gmail.com> wrote:
> The attached patch adds a note about why optimizations cannot drop
> globlas from COMDATs.
>
> Since this is the language ref I made the statement fairly generic, in
> case there is some corner case where an optimization can figure out it
> is actually safe to modify the symbols in a COMDAT.  Let me know if
> you would prefer a more strict statement.
>
> Cheers,
> Rafael