[m-dev.] diff: correct insts in continuation_info

[Fergus Henderson]

Tyson Richard DOWD, you wrote:
> 
> compiler/call_gen.m:
> compiler/code_info.m:
> 	Apply the instmap_delta of the current goal to the instmap when
> 	looking up the insts of live variables.

The code calls apply_instmap_delta once for every variable.
It would be better to call it once for each call.

Apart from that, this change looks fine.

-- 
Fergus Henderson <fjh at cs.mu.oz.au>   |  "I have always known that the pursuit
WWW: <http://www.cs.mu.oz.au/~fjh>   |  of excellence is a lethal habit"
PGP: finger fjh at 128.250.37.3         |     -- the last words of T. S. Garp.