BUG#22299 mgmd crash due to unchecked TransporterFacade::ThreadData expand()

abort if we ever fail to expand a Vector

ndb/include/util/Vector.hpp

@@ -94,6 +94,8 @@ void
 Vector<T>::push_back(const T & t){
   if(m_size == m_arraySize){
     T * tmp = new T [m_arraySize + m_incSize];
+    if(!tmp)
+      abort();
     for (unsigned k = 0; k < m_size; k++)
       tmp[k] = m_items[k];
     delete[] m_items;