replace assert() with DBUG_ASSERT()

Author: kevgs

include/ilist.h

@@ -18,6 +18,8 @@
 
 #pragma once
 
+#include "my_dbug.h"
+
 #include <cstddef>
 #include <iterator>
 
@@ -69,12 +71,12 @@ template <class T, class Tag= void> class ilist
  typedef T *pointer;
  typedef T &reference;
 
- Iterator(ListNode *node) : node_(node) { assert(node_); }
+ Iterator(ListNode *node) : node_(node) { DBUG_ASSERT(node_); }
 
  Iterator &operator++()
  {
  node_= node_->next;
- assert(node_);
+ DBUG_ASSERT(node_);
  return *this;
  }
  Iterator operator++(int)
@@ -87,7 +89,7 @@ template <class T, class Tag= void> class ilist
  Iterator &operator--()
  {
  node_= node_->prev;
- assert(node_);
+ DBUG_ASSERT(node_);
  return *this;
  }
  Iterator operator--(int)