[patch, fortran] Fix some minor resolution errors in io.c

[Jerry DeLisle]

Jerry DeLisle wrote:
> Hi all,
> 
> I plan to commit the following as obvious and simple after regression 
> testing. The id tag problem I stumbled on in working on 37498 and Tobias 
> figured it out.  The other I noticed from Mikael's post to 35840.  I was 
> already checking for more of these little buggers.
> 

Committed revision 140366. 35840 remains open.

2008-09-14  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
	    Tobias Burnus  <burnus@net.b.de>

	PR fortran/35840
	* io.c (match_vtag): Add tag name to error message.
	(match_out_tag): Cleanup whitespace.
	(gfc_resolve_dt): Resolve id and async tags.