QmlOutline: Always reset views

The incremental update is not working as expected.

src/plugins/qmljseditor/qmloutlinemodel.cpp

@@ -383,7 +383,10 @@ void QmlOutlineModel::update(const SemanticInfo &semanticInfo)
     m_typeToIcon.clear();
 
     QmlOutlineModelSync syncModel(this);
+
+    beginResetModel();
     syncModel(m_semanticInfo.document);
+    endResetModel();
 
     m_context.clear();