Updated with the feedback from PR

com.unity.shadergraph/Editor/Drawing/Views/MaterialNodeView.cs

                     else
                     {
                         port.slot = newSlot;
-                        var portInputView = m_PortInputContainer.OfType<PortInputView>().FirstOrDefault(x => Equals(x.slot.id, currentSlot.id));
+                        var portInputView = m_PortInputContainer.OfType<PortInputView>().FirstOrDefault(x => x.slot.id == currentSlot.id);
                         portInputView.UpdateSlot(newSlot);
 
                         slots.Remove(newSlot);

com.unity.shadergraph/Editor/Drawing/Views/PortInputView.cs

         public void UpdateSlotType()
         {
             if (slot.concreteValueType != m_SlotType)
-            {
-            }
         }
 
         void Recreate()