[RFC] Centralize knowledge of eh personality routines

[Arnaud Charlet]

> +    case DW_LANG_Ada83:
> +    case DW_LANG_Ada95:
> +      prefix = "__gnat_eh_personality";
> +      /* The GNAT folk did not follow the standard naming format.
> +	 That can change if we ever have to increment the version.  */
> +      if (ui == UI_DWARF2 || ui == UI_TARGET)
> +	unwind = "";
> +      version = "";
> +      break;
> 
> Let's change that right now, we don't guarantee any ABI compatibility
> between different major releases.  Olivier, any objections?

Looks like a good idea to me, so that we're consistent with other languages
and follow the standard naming format. As you said, we don't guarantee
ABI compatibility.

Arno