[Patch, Fortran] PR87556 – for FORM TEAM also use argse.pre/post

[Tobias Burnus]

as the subject states, FORM TEAM was only using the resulting tree 
expression, ignoring code which was generated before (or afterward).

I am not sure how to best convert it to a test-suite test case. For

    form team (team(this_image()), my_team2)

the old dump was:

 Â Â Â  integer(kind=4) D.3829;
…
 Â Â Â  _gfortran_caf_form_team (team (&D.3829), &my_team2, 0);

the new one is:

 Â  {
 Â Â Â  integer(kind=4) D.3822;

 Â Â Â  D.3822 = _gfortran_caf_this_image (0);
 Â Â Â  _gfortran_caf_form_team (team (&D.3822), &my_team2, 0);
 Â  }

[Does it make sense to check for 5 "this_image (0)" calls? or for 4 
"D.\[0-9\]+ = _gfortran_caf_this_image (0);" calls?]


Build and on-going regtesting on x86-64-gnu-linux.

OK for the trunk?

Tobias

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