As nicely described in the PR, we mishandled the case of passing
optional allocatable DT arguments with allocatable components
when the INTENT was declared as INTENT(OUT), as we unconditionally
tried to deallocate these components even when the argument was not
present.  The obvious solution is to wrap the code for deallocation
by a check for presence.

Regtested on x86_64-pc-linux-gnu.  OK for mainline?

As this is a potentially nasty wrong-code bug, I'd like to backport
to at least 11-branch.

Thanks,
Harald


Fortran - fix handling of optional allocatable DT arguments with INTENT(OUT)

gcc/fortran/ChangeLog:

	PR fortran/102287
	* trans-expr.c (gfc_conv_procedure_call): Wrap deallocation of
	allocatable components of optional allocatable derived type
	procedure arguments with INTENT(OUT) into a presence check.

gcc/testsuite/ChangeLog:

	PR fortran/102287
	* gfortran.dg/intent_out_14.f90: New test.