Fix a number of compiler warnings

Change-Id: I3e71bffb2099d896742a6fca77febe20e2076464
Reviewed-by: hjk <hjk@qt.io>

src/plugins/clangformat/clangformatutils.cpp

@@ -120,7 +120,11 @@ static clang::format::FormatStyle qtcStyle()
     style.ExperimentalAutoDetectBinPacking = false;
     style.FixNamespaceComments = true;
     style.ForEachMacros = {"forever", "foreach", "Q_FOREACH", "BOOST_FOREACH"};
+#if LLVM_VERSION_MAJOR >= 12
+    style.IncludeStyle.IncludeCategories = {{"^<Q.*", 200, 200, true}};
+#else
     style.IncludeStyle.IncludeCategories = {{"^<Q.*", 200, 200}};
+#endif
     style.IncludeStyle.IncludeIsMainRegex = "(Test)?$";
     style.IndentCaseLabels = false;
     style.IndentWidth = 4;

src/plugins/cppeditor/cppquickfixsettings.cpp

@@ -334,7 +334,7 @@ auto removeAndExtractTemplate(QString type)
     QString templateParameter;
     int counter = 0;
     int start = 0;
-    int templateStart;
+    int templateStart = 0;
     for (int i = 0; i < type.length(); ++i) {
         auto c = type[i];
         if (c == '<') {

src/plugins/debugger/breakhandler.cpp

@@ -1665,8 +1665,8 @@ bool BreakHandler::contextMenuEvent(const ItemViewEvent &ev)
                   : locationsEnabled ? tr("Disable Location") : tr("Enable Location"),
               !selectedLocations.isEmpty() && handlesIndividualLocations,
               [this, selectedLocations, locationsEnabled] {
-                   for (const SubBreakpoint &sbp : selectedLocations)
-                       requestSubBreakpointEnabling(sbp, !locationsEnabled);
+                   for (SubBreakpointItem * const sbp : selectedLocations)
+                       requestSubBreakpointEnabling(QPointer(sbp), !locationsEnabled);
               }
     );
 

src/plugins/projectexplorer/devicesupport/desktopdevice.cpp

@@ -186,7 +186,7 @@ QList<FilePath> DesktopDevice::directoryEntries(const FilePath &filePath,
 {
     QTC_CHECK(!filePath.needsDevice());
     const QDir dir(filePath.path());
-    const QFileInfoList entryInfoList = dir.entryInfoList(nameFilters, filters);
+    const QFileInfoList entryInfoList = dir.entryInfoList(nameFilters, filters, sort);
     return Utils::transform(entryInfoList, &FilePath::fromFileInfo);
 }
 

src/plugins/projectexplorer/devicesupport/idevice.cpp

@@ -357,6 +357,7 @@ QByteArray IDevice::fileContents(const FilePath &filePath, qint64 limit, qint64
 {
     Q_UNUSED(filePath);
     Q_UNUSED(limit);
+    Q_UNUSED(offset);
     QTC_CHECK(false);
     return {};
 }

src/plugins/qmldesigner/components/propertyeditor/aligndistribute.cpp

@@ -631,7 +631,7 @@ void AlignDistribute::distributeSpacing(Dimension dimension,
             QTC_ASSERT(!modelNode.isRootNode(), continue);
             if (QmlItemNode::isValidQmlItemNode(modelNode)) {
                 QmlItemNode qmlItemNode(modelNode);
-                qreal parentPos;
+                qreal parentPos = 0;
                 QByteArray propertyName;
                 switch (dimension) {
                 case Dimension::X: {

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

@@ -573,7 +573,7 @@ public:
     friend bool operator==(const ImportView &first, const ImportView &second)
     {
         return first.name == second.name
-               && first.version == second.version & first.sourceId == second.sourceId;
+               && first.version == second.version && first.sourceId == second.sourceId;
     }
 
 public:

src/plugins/qmldesigner/settingspage.cpp

@@ -270,7 +270,7 @@ void SettingsPageWidget::apply()
       DesignerSettingsKey::ENABLE_TIMELINEVIEW
     };
 
-    for (const QByteArray &key : restartNecessaryKeys) {
+    for (const char * const key : restartNecessaryKeys) {
         if (currentSettings.value(key) != newSettings.value(key)) {
             QMessageBox::information(Core::ICore::dialogParent(), tr("Restart Required"),
                 tr("The made changes will take effect after a "

src/plugins/webassembly/webassemblytoolchain.cpp

@@ -162,6 +162,7 @@ QList<ToolChain *> WebAssemblyToolChainFactory::autoDetect(
         const IDevice::Ptr &device)
 {
     Q_UNUSED(alreadyKnown)
+    Q_UNUSED(device)
 
     const FilePath sdk = WebAssemblyEmSdk::registeredEmSdk();
     if (!WebAssemblyEmSdk::isValid(sdk))