Intrinsics arguments evaluated multiple times

[FX Coudert]

> I've got some other ideas for things that need to be tested with  
> the intrinsics as well (for instance, we don't have much of a  
> library testsuite; most all of the tests get constant folded, and I  
> suspect there are some cases where we only test the library and not  
> the constant folding), which this could be added in with.

There already is a PR about that in the libfortran component. (Why  
can't we have a libGfortran bugzilla component?) The one we're  
talking in this thread and the newly filed PR is purely front-end.

> So, file an enhancement PR, and then add me (brooks@gcc....) to the  
> CC list so it won't get lost if/when I have time to work on  
> this.  :)  (The "if" part of that if/when is why I'm not saying to  
> go ahead and assign it to me; I don't know if I'll have time for  
> this or not.)

Done.

FX