Fix more warnings

Found by compiling with clang

Change-Id: Iec0ed8aa8b6a742a5a3996a6c19c410e209fb048
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/cmakeprojectmanager/configmodel.cpp

@@ -268,7 +268,7 @@ bool ConfigModel::hasChanges(bool initialParameters) const
               return initialParameters ? i.isInitial : !i.isInitial;
           });
 
-    return Utils::contains(filtered, [initialParameters](const InternalDataItem &i) {
+    return Utils::contains(filtered, [](const InternalDataItem &i) {
         return i.isUserChanged || i.isUserNew || i.isUnset;
     });
 }

src/plugins/cppeditor/cppcodestylesettings.cpp

@@ -40,7 +40,6 @@
 #include <utils/qtcassert.h>
 #include <utils/settingsutils.h>
 
-static const char groupPostfix[] = "IndentSettings";
 static const char indentBlockBracesKey[] = "IndentBlockBraces";
 static const char indentBlockBodyKey[] = "IndentBlockBody";
 static const char indentClassBracesKey[] = "IndentClassBraces";

src/plugins/qmldesigner/designercore/projectstorage/filesystem.h

@@ -43,7 +43,7 @@ class ProjectStorage;
 
 using PathCache = SourcePathCache<ProjectStorage<Sqlite::Database>, NonLockingMutex>;
 
-class FileSystem final : public FileSystemInterface
+class FileSystem : public FileSystemInterface
 {
 public:
     FileSystem(PathCache &sourcePathCache)

src/plugins/qmldesigner/designercore/projectstorage/projectstorage.h

@@ -1924,6 +1924,8 @@ private:
         void createTypesAndePropertyDeclarationsTables(Database &database,
                                                        const Sqlite::Column &foreignModuleIdColumn)
         {
+            Q_UNUSED(foreignModuleIdColumn)
+
             Sqlite::Table typesTable;
             typesTable.setUseIfNotExists(true);
             typesTable.setName("types");

src/plugins/qmldesigner/designmodewidget.cpp

@@ -245,11 +245,7 @@ void DesignModeWidget::setup()
     m_dockManager->setStyleSheet(Theme::replaceCssColors(sheet));
 
     // Setup icons
-    const QColor iconColor(Theme::getColor(Theme::DStitleBarIcon));
-
     const QString closeUnicode = Theme::getIconUnicode(Theme::Icon::adsClose);
-    const QString menuUnicode = Theme::getIconUnicode(Theme::Icon::adsDropDown);
-    const QString undockUnicode = Theme::getIconUnicode(Theme::Icon::adsDetach);
 
     const QString fontName = "qtds_propertyIconFont.ttf";
     const QSize size = QSize(28, 28);

src/plugins/qmlprojectmanager/qmlproject.cpp

@@ -135,8 +135,6 @@ QmlProject::QmlProject(const Utils::FilePath &fileName)
                               disconnect(m_openFileConnection);
 
                           if (target && success) {
-                              const Utils::FilePath &folder = projectDirectory() + "/content";
-
                               Utils::FilePaths uiFiles = getUiQmlFilesForFolder(projectDirectory()
                                                                                 + "/content");
                               if (uiFiles.isEmpty())

src/plugins/studiowelcome/examplecheckout.cpp

@@ -217,7 +217,7 @@ void FileDownloader::probeUrl()
     QNetworkReply::connect(reply,
                            &QNetworkReply::errorOccurred,
                            this,
-                           [this, reply](QNetworkReply::NetworkError) {
+                           [this](QNetworkReply::NetworkError) {
                                QQmlData *data = QQmlData::get(this, false);
                                if (!data) {
                                    qDebug() << Q_FUNC_INFO << "FileDownloader is nullptr.";

src/plugins/updateinfo/updateinfoplugin.cpp

@@ -209,7 +209,7 @@ struct QtPackage
     QString displayName;
     QVersionNumber version;
     bool installed;
-    bool isPrerelease;
+    bool isPrerelease = false;
 };
 
 static QList<QtPackage> availableQtPackages(const QDomDocument &document)