QmlDesigner.Instances: Fix type registration

Change-Id: I85378c0a2884a7c8886482f38bad24210ef33d69
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>

share/qtcreator/qml/qmlpuppet/interfaces/nodeinstanceserverinterface.cpp

@@ -99,7 +99,7 @@ void NodeInstanceServerInterface::registerCommands()
     qRegisterMetaTypeStreamOperators<ChangeFileUrlCommand>("ChangeFileUrlCommand");
 
     qRegisterMetaType<ChangeStateCommand>("ChangeStateCommand");
-    qRegisterMetaTypeStreamOperators<PropertyAbstractContainer>("ChangeStateCommand");
+    qRegisterMetaTypeStreamOperators<ChangeStateCommand>("ChangeStateCommand");
 
     qRegisterMetaType<RemoveInstancesCommand>("RemoveInstancesCommand");
     qRegisterMetaTypeStreamOperators<RemoveInstancesCommand>("RemoveInstancesCommand");