[patch] Correctly set the comdat symbol on COFF

[Rafael Espíndola]

> It is probably independent, but I will take a look.

OK, it is easy to see what is going on, but not very easy to fix.

The issue is that we can have mulitple sections with the same name,
but the association is being done with just "associative name", so it
is ambiguous what section we are referring too  :-(

I will report a bug since it is independent and a fairly major issue.

Cheers,
Rafael