trans.h (struct gfc_ss_info): Move can_be_null_ref component from the data::scalar subcomponent to the toplevel.
fortran/
* trans.h (struct gfc_ss_info): Move can_be_null_ref component from
the data::scalar subcomponent to the toplevel.
* trans-expr.c (gfc_conv_expr): Update component reference.
* trans-array.c (gfc_add_loop_ss_code): Ditto.
(gfc_walk_elemental_function_args): Ditto. Move the conditional setting
the field out of the scalar-only block.