get_member_offset_from_deref
offset = get_member_offset_from_deref(expr);
int get_member_offset_from_deref(struct expression *expr);
offset = get_member_offset_from_deref(expr);
offset = get_member_offset_from_deref(expr);
offset = get_member_offset_from_deref(expr);
left_offset = get_member_offset_from_deref(left);
right_offset = get_member_offset_from_deref(right);
tmp = get_member_offset_from_deref(expr);