[patch, fortran] Fix PR 57023, packing for some array temporaries

[Thomas Koenig]

Hi Tobias,

> Thomas Koenig wrote:
>> This patch takes the approach that any array bound which
>> contains a dummy variable which is not INTENT(IN) may be
>> changed by the user, and that we cannot be assured that
>> it will not be changed.
> 
> How about  sym->attr.flavor == FL_PARAMETER? I am not sure
> whether they are handled before, but if not not you really
> should regard them as constant - even more than INTENT(IN).

The test only does further checking if the variable in question
is a dummy variable.  It is not possible to have a dummy parameter,
so I think we are safe.


> Otherwise, the patch looks okay.


Committed to trunk, will commit to 4.9 and 4.8 after a few days.

Thanks for the review!

	Thomas