> Joel> -		sym2 = lookup_symbol (SYMBOL_NATURAL_NAME (sym),
> Joel> +		sym2 = lookup_symbol (SYMBOL_SEARCH_NAME (sym),
> 
> Oops.  Actually, I looked closer, and iterate_over_block_arg_vars uses
> SYMBOL_LINKAGE_NAME.
> 
> Either that is a latent bug, or I think your patch should follow it in
> the same of consistency.

Ah, yes, indeed. SYMBOL_LINKAGE_NAME is even better, I think, as it
requires no name transformation, and we're sure to get an exact match.

This is what I checked in (after re-testing). Thanks for the review!

-- 
Joel