Fix Linux/GCC build error after recent changes

source/blender/freestyle/intern/stroke/CurveAdvancedIterators.h

@@ -22,6 +22,7 @@
  * \brief Iterators used to iterate over the elements of the Curve. Can't be used in python
  */
 
+#include "CurveIterators.h"
 #include "Stroke.h"
 
 namespace Freestyle {

source/blender/freestyle/intern/stroke/StrokeAdvancedIterators.h

@@ -23,6 +23,7 @@
  */
 
 #include "Stroke.h"
+#include "StrokeIterators.h"
 
 namespace Freestyle {
 

source/blender/freestyle/intern/view_map/ViewMapAdvancedIterators.h

@@ -24,6 +24,7 @@
  */
 
 #include "ViewMap.h"
+#include "ViewMapIterators.h"
 
 #include "../system/Iterator.h"  //soc