QmlJSEditor: Pass string list by reference

Change-Id: Iab15b11834a6b0339b163a4444d4ef695cae7416
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/qmljseditor/qmltaskmanager.cpp

@@ -165,7 +165,7 @@ void QmlTaskManager::updateMessagesNow(bool updateSemantic)
     m_messageCollector.setFuture(future);
 }
 
-void QmlTaskManager::documentsRemoved(const QStringList path)
+void QmlTaskManager::documentsRemoved(const QStringList &path)
 {
     foreach (const QString &item, path)
         removeTasksForFile(item);

src/plugins/qmljseditor/qmltaskmanager.h

@@ -55,7 +55,7 @@ public:
 public slots:
     void updateMessages();
     void updateSemanticMessagesNow();
-    void documentsRemoved(const QStringList path);
+    void documentsRemoved(const QStringList &path);
 
 private slots:
     void displayResults(int begin, int end);