gfortran.h (gfc_error): Rename overload with OPT argument to...

	* gfortran.h (gfc_error): Rename overload with OPT argument to...
	(gfc_error_opt): ... this.
	* error.c (gfc_error): Rename overloads with OPT argument to...
	(gfc_error_opt): ... this.  Adjust callers.
	(gfc_notify_std, gfc_error): Adjust callers.
	* resolve.c (resolve_structure_cons, resolve_global_procedure): Use
	gfc_error_opt instead of gfc_error.
	* interface.c (argument_rank_mismatch, compare_parameter,
	gfc_check_typebound_override): Likewise.  Fix up formatting.

From-SVN: r243941