Qml Inspector: Sort watch items if SortStructMembers is set

Change-Id: I94f3a9c24df52c1a5689ea6e73d81a526d12bdc4
Task-number: QTCREATORBUG-16645
Reviewed-by: hjk <hjk@qt.io>

src/plugins/debugger/qml/qmlinspectoragent.cpp

@@ -663,6 +663,12 @@ void QmlInspectorAgent::addWatchData(const ObjectReference &obj,
             propertiesWatch->appendChild(propertyWatch);
         }
 
+        if (boolSetting(SortStructMembers)) {
+            propertiesWatch->sortChildren([](const WatchItem *item1, const WatchItem *item2) {
+                return item1->name < item2->name;
+            });
+        }
+
         m_qmlEngine->watchHandler()->insertItem(propertiesWatch);
     }