639 Check for protected functions during DV load

src/libs/dvcore/dvfunction.cpp

@@ -17,6 +17,8 @@
 
 #include "dvfunction.h"
 
+#include "dvpartition.h"
+
 namespace dvm {
 
 DVFunction::DVFunction(DVObject *parent)
@@ -24,4 +26,9 @@ DVFunction::DVFunction(DVObject *parent)
 {
 }
 
+DVPartition *DVFunction::partition() const
+{
+    return qobject_cast<DVPartition *>(parent());
+}
+
 } // namespace dvm