Uninitialized value in new project tree structure.

src/plugins/qt4projectmanager/qt4nodes.cpp

@@ -126,6 +126,11 @@ namespace Internal {
         QString fullName;
         QIcon icon;
 
+        InternalNode()
+        {
+            type = ProjectExplorer::UnknownFileType;
+        }
+
         ~InternalNode()
         {
             qDeleteAll(subnodes);