const'ify + fix clazy warnings

startkde/startplasma-wayland.cpp

@@ -34,7 +34,7 @@ int main(int argc, char **argv)
         const QString locale1Service = QStringLiteral("org.freedesktop.locale1");
         const QString locale1Path = QStringLiteral("/org/freedesktop/locale1");
         QDBusMessage message =
-            QDBusMessage::createMethodCall(locale1Service, locale1Path, QStringLiteral("org.freedesktop.DBus.Properties"), QLatin1String("GetAll"));
+            QDBusMessage::createMethodCall(locale1Service, locale1Path, QStringLiteral("org.freedesktop.DBus.Properties"), QStringLiteral("GetAll"));
         message << locale1Service;
         QDBusMessage resultMessage = QDBusConnection::systemBus().call(message);
         if (resultMessage.type() == QDBusMessage::ReplyMessage) {

statusnotifierwatcher/statusnotifierwatcher.cpp

@@ -80,7 +80,7 @@ void StatusNotifierWatcher::serviceUnregistered(const QString &name)
     qDebug() << "Service " << name << "unregistered";
     m_serviceWatcher->removeWatchedService(name);
 
-    QString match = name + QLatin1Char('/');
+    const QString match = name + QLatin1Char('/');
     QStringList::Iterator it = m_registeredServices.begin();
     while (it != m_registeredServices.end()) {
         if (it->startsWith(match)) {

wallpapers/image/image.cpp

@@ -313,7 +313,7 @@ void Image::useSingleImageDefaults()
     if (m_wallpaper.isEmpty()) {
         Plasma::Theme theme;
         m_wallpaper = theme.wallpaperPath();
-        int index = m_wallpaper.indexOf(QString::fromLatin1("/contents/images/"));
+        int index = m_wallpaper.indexOf(QLatin1String("/contents/images/"));
         if (index > -1) { // We have file from package -> get path to package
             m_wallpaper = m_wallpaper.left(index);
         }

wallpapers/image/plasma-apply-wallpaperimage.cpp

@@ -74,7 +74,10 @@ int main(int argc, char **argv)
                 << "d.currentConfigGroup = ['Wallpaper', 'org.kde.image', 'General'];"
                 << "d.writeConfig('Image', 'file://" + wallpaperFile + "');"
                 << "}";
-            auto message = QDBusMessage::createMethodCall("org.kde.plasmashell", "/PlasmaShell", "org.kde.PlasmaShell", "evaluateScript");
+            auto message = QDBusMessage::createMethodCall(QStringLiteral("org.kde.plasmashell"),
+                                                          QStringLiteral("/PlasmaShell"),
+                                                          QStringLiteral("org.kde.PlasmaShell"),
+                                                          QStringLiteral("evaluateScript"));
             message.setArguments(QVariantList() << QVariant(script));
             auto reply = QDBusConnection::sessionBus().call(message);