Fortran : ProcPtr function results: 'ppr@' in error message PR39695

Fortran  : ProcPtr function results: 'ppr@' in error message PR39695

The value 'ppr@' is set in the name of result symbol, the actual
name of the symbol is in the procedure name symbol pointed
to by the result symbol's namespace (ns). When reporting errors for
symbols that have the proc_pointer attribute check whether the
result attribute is set and set the name accordingly.

2020-05-20  Mark Eggleston  <markeggleston@gcc.gnu.org>

gcc/fortran/

	PR fortran/39695
	* resolve.c (resolve_fl_procedure): Set name depending on
	whether the result attribute is set.  For PROCEDURE/RESULT
	conflict use the name in sym->ns->proc_name->name.
	* symbol.c (gfc_add_type): Add check for function and result
	attributes use sym->ns->proc_name->name if both are set.
	Where the symbol cannot have a type use the name in
	sym->ns->proc_name->name.

2020-05-20  Mark Eggleston  <markeggleston@gcc.gnu.org>

gcc/testsuite/

	PR fortran/39695
	* gfortran.dg/pr39695_1.f90: New test.
	* gfortran.dg/pr39695_2.f90: New test.
	* gfortran.dg/pr39695_3.f90: New test.
	* gfortran.dg/pr39695_4.f90: New test.