[RFA] Fix argumens to return_value_location

[Andrew Cagney]

> I know --- this didn't really fix too many failures.  But how could it
> have worked otherwise?  I mean, the wrong register numbers are going
> into *hi and *lo.


It took me several takes.  It appears that sometimes *four* wrongs can 
made a right -  move the wrong bytes from the wrong offset, to the wrong 
subfield of the wrong register.

	Andrew