Add missing Q_REQUIRED_RESULT here too

agent/agent.h

@@ -28,7 +28,7 @@ public:
     void reindexCollection(const qlonglong id);
     void reindexCollections(const QList<qlonglong> &ids);
     qlonglong indexedItems(const qlonglong id);
-    int numberOfCollectionQueued();
+    Q_REQUIRED_RESULT int numberOfCollectionQueued();
 
     void itemAdded(const Akonadi::Item &item, const Akonadi::Collection &collection) override;
     void itemChanged(const Akonadi::Item &item, const QSet<QByteArray> &partIdentifiers) override;

agent/akonotesindexer.h

@@ -26,7 +26,7 @@ public:
     explicit AkonotesIndexer(const QString &path);
     ~AkonotesIndexer() override;
 
-    QStringList mimeTypes() const override;
+    Q_REQUIRED_RESULT QStringList mimeTypes() const override;
 
     void index(const Akonadi::Item &item) override;
     void commit() override;

agent/calendarindexer.h

@@ -27,7 +27,7 @@ public:
     explicit CalendarIndexer(const QString &path);
     ~CalendarIndexer() override;
 
-    QStringList mimeTypes() const override;
+    Q_REQUIRED_RESULT QStringList mimeTypes() const override;
 
     void index(const Akonadi::Item &item) override;
     void commit() override;

agent/contactindexer.h

@@ -16,7 +16,7 @@ public:
     explicit ContactIndexer(const QString &path);
     ~ContactIndexer() override;
 
-    QStringList mimeTypes() const override;
+    Q_REQUIRED_RESULT QStringList mimeTypes() const override;
 
     void index(const Akonadi::Item &item) override;
     void remove(const Akonadi::Item &item) override;

agent/emailindexer.h

@@ -24,7 +24,7 @@ public:
     EmailIndexer(const QString &path, const QString &contactDbPath);
     ~EmailIndexer() override;
 
-    QStringList mimeTypes() const override;
+    Q_REQUIRED_RESULT QStringList mimeTypes() const override;
 
     void index(const Akonadi::Item &item) override;
     void updateFlags(const Akonadi::Item &item, const QSet<QByteArray> &added, const QSet<QByteArray> &removed) override;

agent/scheduler.h

@@ -55,7 +55,7 @@ public:
      */
     void setBusyTimeout(int);
 
-    int numberOfCollectionQueued() const;
+    Q_REQUIRED_RESULT int numberOfCollectionQueued() const;
 
 Q_SIGNALS:
     void status(int status, const QString &message = QString());