LRB midpath code quality

[Roman Kennke]

I believe it does look better now:

https://paste.fedoraproject.org/paste/nMZb19apbJq0uOB9CboUOA

Does it?

Roman

> 
>> Well yes, an implicit null-check would be good. It would never fire,
>> because if the value is null, it would blow up earlier in the cset
>> check. Or am I missing something?
> 
> I suppose PhaseCFG::implicit_null_check() doesn't recognize the barrier
> load as a candidate for implicit null checks for some reason.
> 
> Roland.
>