[patch, fortran] fixes for the EXIT intrinsic function (PR30933)

[Daniel Franke]

On Friday 23 February 2007 19:03:22 you wrote:

> PS: Thanks to Daniel Franke for finding the two bugs.

Tobias,
you are welcome. There are more were these came from ;)

Btw, please omit the testcases for now. They still undergo heavy editing. 
Also, since the intrinsic's name is resolved only once, I think it's 
necessary to have multiple link-tests, one for each allowed call. 

I'll submit a preliminary patch for the testsuite later this night.

	Daniel