Add missing Q_OBJECT macros

REVIEW: 129738

src/tests/kitemlistcontrollertest.cpp

@@ -37,6 +37,7 @@
  */
 class KItemListControllerTestStyle : public QProxyStyle
 {
+    Q_OBJECT
 public:
     KItemListControllerTestStyle(QStyle* style) :
         QProxyStyle(style),

src/tests/kitemlistselectionmanagertest.cpp

@@ -26,6 +26,7 @@
 
 class DummyModel : public KItemModelBase
 {
+    Q_OBJECT
 public:
     DummyModel();
     void setCount(int count);