ir_validate::visit_leave() wrong/duplicate parameter checking

In http://doxygen.reactos.org/d0/d10/ir__validate_8cpp_source.html :

00122 if (ir->counter != NULL) {
00123 if ((ir->from == NULL) || (ir->from == NULL) || (ir->increment == NULL)) {

It should be

00122 if (ir->counter != NULL) {
00123 if ((ir->from == NULL) || (ir->to == NULL) || (ir->increment == NULL)) {