Fortran : ICE in gfc_check_pointer_assign PR95612

Fortran  : ICE in gfc_check_pointer_assign PR95612

Output an error if the right hand value is a zero sized array or
does not have a symbol tree otherwise continue checking.

2020-07-14  Steven G. Kargl  <kargl@gcc.gnu.org>

gcc/fortran/

	PR fortran/95612
	* expr.c (gfc_check_pointer_assigb): Output an error if
	rvalue is a zero sized array or output an error if rvalue
	doesn't have a symbol tree.

2020-07-14  Mark Eggleston  <markeggleston@gcc.gnu.org>

gcc/testsuite/

	PR fortran/95612
	* gfortran.dg/pr95612.f90: New test.