[patch, fortran] Make front end walker more complete

[Mikael Morin]

On Friday 17 September 2010 21:34:45 Thomas Koenig wrote:
> Hello world,
> 
> here's a patch to handle more cases in the front end, pretty
> self-explanatory.
> 
> Regression-tested.
> 
> OK for trunk?
> 
> 2010-09-17  Thomas Koenig  <tkoenig@gcc.gnu.org>
> 
> 	* frontend-passes.c (gfc_expr_walker):  Handle
> 	constructors and references.
There is still EXPR_SUBSTRING that can have a subreference, but it can be a 
follow-up (obvious probably) patch. 
Thus, OK. 

Mikael