diff --git a/doc/images/qtcreator-modeleditor-classes.png b/doc/images/qtcreator-modeleditor-classes.png
index 182a1596e88..32aff713ef8 100644
Binary files a/doc/images/qtcreator-modeleditor-classes.png and b/doc/images/qtcreator-modeleditor-classes.png differ
diff --git a/doc/images/qtcreator-modeleditor-packages.png b/doc/images/qtcreator-modeleditor-packages.png
index 50ba8f86d6c..07b31e8552b 100644
Binary files a/doc/images/qtcreator-modeleditor-packages.png and b/doc/images/qtcreator-modeleditor-packages.png differ
diff --git a/doc/images/qtcreator-modeleditor.png b/doc/images/qtcreator-modeleditor.png
index 52a404f59db..447c210c2e9 100644
Binary files a/doc/images/qtcreator-modeleditor.png and b/doc/images/qtcreator-modeleditor.png differ
diff --git a/src/libs/3rdparty/cplusplus/Parser.cpp b/src/libs/3rdparty/cplusplus/Parser.cpp
index 16f351077a1..3547041212e 100644
--- a/src/libs/3rdparty/cplusplus/Parser.cpp
+++ b/src/libs/3rdparty/cplusplus/Parser.cpp
@@ -2565,7 +2565,7 @@ bool Parser::parseMemberSpecification(DeclarationAST *&node, ClassSpecifierAST *
     case T_STATIC_ASSERT:
         if (_languageFeatures.cxx11Enabled)
             CACHE_AND_RETURN(cacheKey, parseStaticAssertDeclaration(node));
-        // fall-through
+        Q_FALLTHROUGH();
 
     default:
         CACHE_AND_RETURN(cacheKey, parseSimpleDeclaration(node, declaringClass));
@@ -3830,7 +3830,7 @@ bool Parser::parseBlockDeclaration(DeclarationAST *&node)
     case T_STATIC_ASSERT:
         if (_languageFeatures.cxx11Enabled)
             return parseStaticAssertDeclaration(node);
-        // fall-through
+        Q_FALLTHROUGH();
 
     default:
         return parseSimpleDeclaration(node);
@@ -3914,7 +3914,7 @@ bool Parser::lookAtStorageClassSpecifier() const
     case T_CONSTEXPR:
         if (_languageFeatures.cxx11Enabled)
             return true;
-        // fall-through
+        Q_FALLTHROUGH();
     default:
         return false;
     }
@@ -4514,7 +4514,7 @@ bool Parser::parsePrimaryExpression(ExpressionAST *&node)
     case T_NULLPTR:
         if (_languageFeatures.cxx11Enabled)
             return parsePointerLiteral(node);
-        // fall-through
+        Q_FALLTHROUGH();
 
     case T_CHAR_LITERAL: // ### FIXME don't use NumericLiteral for chars
     case T_WIDE_CHAR_LITERAL:
diff --git a/src/libs/clangsupport/clangcodemodelconnectionclient.cpp b/src/libs/clangsupport/clangcodemodelconnectionclient.cpp
index 7fc4395dfef..1bfa5678839 100644
--- a/src/libs/clangsupport/clangcodemodelconnectionclient.cpp
+++ b/src/libs/clangsupport/clangcodemodelconnectionclient.cpp
@@ -45,8 +45,7 @@ ClangCodeModelConnectionClient::ClangCodeModelConnectionClient(
     : ConnectionClient(Utils::TemporaryDirectory::masterDirectoryPath()
                        + QStringLiteral("/ClangBackEnd-")
                        + currentProcessId()),
-      m_serverProxy(client, nullptr),
-      m_client(client)
+      m_serverProxy(client, nullptr)
 {
     m_processCreator.setTemporaryDirectoryPattern("clangbackend-XXXXXX");
     m_processCreator.setArguments({connectionName()});
diff --git a/src/libs/clangsupport/clangcodemodelconnectionclient.h b/src/libs/clangsupport/clangcodemodelconnectionclient.h
index c5a4d37f38b..ac7afa678a7 100644
--- a/src/libs/clangsupport/clangcodemodelconnectionclient.h
+++ b/src/libs/clangsupport/clangcodemodelconnectionclient.h
@@ -45,7 +45,6 @@ protected:
 
 private:
     ClangCodeModelServerProxy m_serverProxy;
-    ClangCodeModelClientInterface *m_client;
 };
 
 } // namespace ClangBackEnd
diff --git a/src/libs/modelinglib/qmt/diagram_controller/diagramcontroller.cpp b/src/libs/modelinglib/qmt/diagram_controller/diagramcontroller.cpp
index 00688013593..aa768e1106e 100644
--- a/src/libs/modelinglib/qmt/diagram_controller/diagramcontroller.cpp
+++ b/src/libs/modelinglib/qmt/diagram_controller/diagramcontroller.cpp
@@ -764,13 +764,13 @@ void DiagramController::removeObjects(MObject *modelObject)
         DElement *diagramElement = findDelegate(modelObject, diagram);
         if (diagramElement)
             removeElement(diagramElement, diagram);
-        foreach (const Handle<MRelation> &relation, modelObject->relations()) {
+        for (const Handle<MRelation> &relation : modelObject->relations()) {
             DElement *diagramElement = findDelegate(relation.target(), diagram);
             if (diagramElement)
                 removeElement(diagramElement, diagram);
         }
     }
-    foreach (const Handle<MObject> &object, modelObject->children()) {
+    for (const Handle<MObject> &object : modelObject->children()) {
         if (object.hasTarget())
             removeObjects(object.target());
     }
diff --git a/src/libs/modelinglib/qmt/model_controller/mchildrenvisitor.cpp b/src/libs/modelinglib/qmt/model_controller/mchildrenvisitor.cpp
index aed3f795f08..f8ed8800f07 100644
--- a/src/libs/modelinglib/qmt/model_controller/mchildrenvisitor.cpp
+++ b/src/libs/modelinglib/qmt/model_controller/mchildrenvisitor.cpp
@@ -45,7 +45,7 @@ void MChildrenVisitor::visitMElement(MElement *element)
 
 void MChildrenVisitor::visitMObject(MObject *object)
 {
-    foreach (const Handle<MObject> &handle, object->children()) {
+    for (const Handle<MObject> &handle : object->children()) {
         MObject *child = handle.target();
         if (child)
             child->accept(this);
diff --git a/src/libs/modelinglib/qmt/model_controller/mclonevisitor.cpp b/src/libs/modelinglib/qmt/model_controller/mclonevisitor.cpp
index 7231346b55f..a8d431a87e0 100644
--- a/src/libs/modelinglib/qmt/model_controller/mclonevisitor.cpp
+++ b/src/libs/modelinglib/qmt/model_controller/mclonevisitor.cpp
@@ -159,7 +159,7 @@ void MCloneDeepVisitor::visitMObject(const MObject *object)
     visitMElement(object);
     auto cloned = dynamic_cast<MObject *>(m_cloned);
     QMT_ASSERT(cloned, return);
-    foreach (const Handle<MObject> &handle, object->children()) {
+    for (const Handle<MObject> &handle : object->children()) {
         if (handle.hasTarget()) {
             MCloneDeepVisitor visitor;
             handle.target()->accept(&visitor);
@@ -170,7 +170,7 @@ void MCloneDeepVisitor::visitMObject(const MObject *object)
             cloned->addChild(handle.uid());
         }
     }
-    foreach (const Handle<MRelation> &handle, object->relations()) {
+    for (const Handle<MRelation> &handle : object->relations()) {
         if (handle.hasTarget()) {
             MCloneDeepVisitor visitor;
             handle.target()->accept(&visitor);
diff --git a/src/libs/modelinglib/qmt/model_controller/modelcontroller.cpp b/src/libs/modelinglib/qmt/model_controller/modelcontroller.cpp
index ff74d61ff33..88a4520eb33 100644
--- a/src/libs/modelinglib/qmt/model_controller/modelcontroller.cpp
+++ b/src/libs/modelinglib/qmt/model_controller/modelcontroller.cpp
@@ -1060,9 +1060,9 @@ void ModelController::renewElementKey(MElement *element, QHash<Uid, Uid> *renewe
         }
         auto object = dynamic_cast<MObject *>(element);
         if (object) {
-            foreach (const Handle<MObject> &child, object->children())
+            for (const Handle<MObject> &child : object->children())
                 renewElementKey(child.target(), renewedKeys);
-            foreach (const Handle<MRelation> &relation, object->relations())
+            for (const Handle<MRelation> &relation : object->relations())
                 renewElementKey(relation.target(), renewedKeys);
         }
     }
@@ -1071,9 +1071,9 @@ void ModelController::renewElementKey(MElement *element, QHash<Uid, Uid> *renewe
 void ModelController::updateRelationKeys(MElement *element, const QHash<Uid, Uid> &renewedKeys)
 {
     if (auto object = dynamic_cast<MObject *>(element)) {
-        foreach (const Handle<MRelation> &handle, object->relations())
+        for (const Handle<MRelation> &handle : object->relations())
             updateRelationEndKeys(handle.target(), renewedKeys);
-        foreach (const Handle<MObject> &child, object->children())
+        for (const Handle<MObject> &child : object->children())
             updateRelationKeys(child.target(), renewedKeys);
     } else if (auto relation = dynamic_cast<MRelation *>(element)) {
         updateRelationEndKeys(relation, renewedKeys);
@@ -1097,9 +1097,9 @@ void ModelController::mapObject(MObject *object)
     if (object) {
         QMT_CHECK(!m_objectsMap.contains(object->uid()));
         m_objectsMap.insert(object->uid(), object);
-        foreach (const Handle<MObject> &child, object->children())
+        for (const Handle<MObject> &child : object->children())
             mapObject(child.target());
-        foreach (const Handle<MRelation> &relation, object->relations())
+        for (const Handle<MRelation> &relation : object->relations())
             mapRelation(relation.target());
     }
 }
@@ -1108,9 +1108,9 @@ void ModelController::unmapObject(MObject *object)
 {
     if (object) {
         QMT_CHECK(m_objectsMap.contains(object->uid()));
-        foreach (const Handle<MRelation> &relation, object->relations())
+        for (const Handle<MRelation> &relation : object->relations())
             unmapRelation(relation.target());
-        foreach (const Handle<MObject> &child, object->children())
+        for (const Handle<MObject> &child : object->children())
             unmapObject(child.target());
         m_objectsMap.remove(object->uid());
     }
@@ -1209,7 +1209,7 @@ void ModelController::verifyModelIntegrity(const MObject *object, QHash<Uid, con
     QMT_ASSERT(object, return);
     QMT_ASSERT(!objectsMap->contains(object->uid()), return);
     objectsMap->insert(object->uid(), object);
-    foreach (const Handle<MRelation> &handle, object->relations()) {
+    for (const Handle<MRelation> &handle : object->relations()) {
         MRelation *relation = handle.target();
         if (relation) {
             QMT_ASSERT(!relationsMap->contains(relation->uid()), return);
@@ -1222,7 +1222,7 @@ void ModelController::verifyModelIntegrity(const MObject *object, QHash<Uid, con
             objectRelationsMap->insert(relation->endBUid(), relation);
         }
     }
-    foreach (const Handle<MObject> &handle, object->children()) {
+    for (const Handle<MObject> &handle : object->children()) {
         MObject *childObject = handle.target();
         if (childObject)
             verifyModelIntegrity(childObject, objectsMap, relationsMap, objectRelationsMap);
diff --git a/src/libs/modelinglib/qmt/model_ui/treemodel.cpp b/src/libs/modelinglib/qmt/model_ui/treemodel.cpp
index 671f769ba59..18d1cb2c236 100644
--- a/src/libs/modelinglib/qmt/model_ui/treemodel.cpp
+++ b/src/libs/modelinglib/qmt/model_ui/treemodel.cpp
@@ -755,14 +755,14 @@ void TreeModel::createChildren(const MObject *parentObject, ModelItem *parentIte
     m_objectToItemMap.insert(parentObject, parentItem);
     QMT_CHECK(!m_itemToObjectMap.contains(parentItem));
     m_itemToObjectMap.insert(parentItem, parentObject);
-    foreach (const Handle<MObject> &object, parentObject->children()) {
+    for (const Handle<MObject> &object : parentObject->children()) {
         if (object.hasTarget()) {
             ModelItem *item = createItem(object.target());
             parentItem->appendRow(item);
             createChildren(object.target(), item);
         }
     }
-    foreach (const Handle<MRelation> &handle, parentObject->relations()) {
+    for (const Handle<MRelation> &handle : parentObject->relations()) {
         if (handle.hasTarget()) {
             MRelation *relation = handle.target();
             ModelItem *item = createItem(relation);
@@ -780,7 +780,7 @@ void TreeModel::removeObjectFromItemMap(const MObject *object)
     QMT_CHECK(m_itemToObjectMap.contains(item));
     m_itemToObjectMap.remove(item);
     m_objectToItemMap.remove(object);
-    foreach (const Handle<MObject> &child, object->children()) {
+    for (const Handle<MObject> &child : object->children()) {
         if (child.hasTarget())
             removeObjectFromItemMap(child.target());
     }
diff --git a/src/libs/modelinglib/qmt/tasks/diagramscenecontroller.cpp b/src/libs/modelinglib/qmt/tasks/diagramscenecontroller.cpp
index e512b98d533..cd9f4bfc8ce 100644
--- a/src/libs/modelinglib/qmt/tasks/diagramscenecontroller.cpp
+++ b/src/libs/modelinglib/qmt/tasks/diagramscenecontroller.cpp
@@ -504,7 +504,7 @@ MPackage *DiagramSceneController::findSuitableParentPackage(DElement *topmostDia
 MDiagram *DiagramSceneController::findDiagramBySearchId(MPackage *package, const QString &diagramName)
 {
     QString diagramSearchId = NameController::calcElementNameSearchId(diagramName);
-    foreach (const Handle<MObject> &handle, package->children()) {
+    for (const Handle<MObject> &handle : package->children()) {
         if (handle.hasTarget()) {
             if (auto diagram = dynamic_cast<MDiagram *>(handle.target())) {
                 if (NameController::calcElementNameSearchId(diagram->name()) == diagramSearchId)
@@ -745,7 +745,7 @@ DObject *DiagramSceneController::addObject(MObject *modelObject, const QPointF &
             if (dobject) {
                 MObject *mobject = m_modelController->findObject(dobject->modelUid());
                 if (mobject) {
-                    foreach (const Handle<MRelation> &handle, mobject->relations()) {
+                    for (const Handle<MRelation> &handle : mobject->relations()) {
                         if (handle.hasTarget()
                                 && ((handle.target()->endAUid() == modelObject->uid()
                                      && handle.target()->endBUid() == mobject->uid())
@@ -754,7 +754,7 @@ DObject *DiagramSceneController::addObject(MObject *modelObject, const QPointF &
                             addRelation(handle.target(), QList<QPointF>(), diagram);
                         }
                     }
-                    foreach (const Handle<MRelation> &handle, modelObject->relations()) {
+                    for (const Handle<MRelation> &handle : modelObject->relations()) {
                         if (handle.hasTarget()
                                 && ((handle.target()->endAUid() == modelObject->uid()
                                      && handle.target()->endBUid() == mobject->uid())
@@ -769,7 +769,7 @@ DObject *DiagramSceneController::addObject(MObject *modelObject, const QPointF &
     }
 
     // add all self relations
-    foreach (const Handle<MRelation> &handle, modelObject->relations()) {
+    for (const Handle<MRelation> &handle : modelObject->relations()) {
         if (handle.hasTarget ()
                 && handle.target()->endAUid() == modelObject->uid()
                 && handle.target()->endBUid() == modelObject->uid()) {
diff --git a/src/libs/modelinglib/qmt/tasks/finddiagramvisitor.cpp b/src/libs/modelinglib/qmt/tasks/finddiagramvisitor.cpp
index a4bbd79528d..f87f9ffb746 100644
--- a/src/libs/modelinglib/qmt/tasks/finddiagramvisitor.cpp
+++ b/src/libs/modelinglib/qmt/tasks/finddiagramvisitor.cpp
@@ -40,7 +40,7 @@ FindDiagramVisitor::~FindDiagramVisitor()
 
 void FindDiagramVisitor::visitMObject(const MObject *object)
 {
-    foreach (const Handle<MObject> &child, object->children()) {
+    for (const Handle<MObject> &child : object->children()) {
         if (child.hasTarget()) {
             if (auto diagram = dynamic_cast<MDiagram *>(child.target())) {
                 m_diagram = diagram;
diff --git a/src/libs/modelinglib/qmt/tasks/findrootdiagramvisitor.cpp b/src/libs/modelinglib/qmt/tasks/findrootdiagramvisitor.cpp
index 6fad5d6d34d..fe9a78543bf 100644
--- a/src/libs/modelinglib/qmt/tasks/findrootdiagramvisitor.cpp
+++ b/src/libs/modelinglib/qmt/tasks/findrootdiagramvisitor.cpp
@@ -40,7 +40,7 @@ FindRootDiagramVisitor::~FindRootDiagramVisitor()
 void FindRootDiagramVisitor::visitMObject(MObject *object)
 {
     // first search flat
-    foreach(const Handle<MObject> &child, object->children()) {
+    for (const Handle<MObject> &child : object->children()) {
         if (child.hasTarget()) {
             auto diagram = dynamic_cast<MDiagram *>(child.target());
             if (diagram) {
@@ -50,7 +50,7 @@ void FindRootDiagramVisitor::visitMObject(MObject *object)
         }
     }
     // then search in children
-    foreach(const Handle<MObject> &child, object->children()) {
+    for (const Handle<MObject> &child : object->children()) {
         if (child.hasTarget()) {
             child.target()->accept(this);
             if (m_diagram)
diff --git a/src/libs/qmleditorwidgets/contextpanewidgetborderimage.ui b/src/libs/qmleditorwidgets/contextpanewidgetborderimage.ui
index df35b99cdd4..8bd14156cba 100644
--- a/src/libs/qmleditorwidgets/contextpanewidgetborderimage.ui
+++ b/src/libs/qmleditorwidgets/contextpanewidgetborderimage.ui
@@ -193,7 +193,7 @@
         </property>
         <property name="icon">
          <iconset resource="resources.qrc">
-          <normaloff>:/qmldesigner/images/tile-icon-hor - scale.png</normaloff>:/qmldesigner/images/tile-icon-hor - scale.png</iconset>
+          <normaloff>:/qmldesigner/images/tile-icon-hor-scale.png</normaloff>:/qmldesigner/images/tile-icon-hor-scale.png</iconset>
         </property>
         <property name="iconSize">
          <size>
diff --git a/src/libs/qmleditorwidgets/images/tile-icon-hor - scale.png b/src/libs/qmleditorwidgets/images/tile-icon-hor-scale.png
similarity index 100%
rename from src/libs/qmleditorwidgets/images/tile-icon-hor - scale.png
rename to src/libs/qmleditorwidgets/images/tile-icon-hor-scale.png
diff --git a/src/libs/qmleditorwidgets/resources.qrc b/src/libs/qmleditorwidgets/resources.qrc
index 5ac07864815..d8bea3895c6 100644
--- a/src/libs/qmleditorwidgets/resources.qrc
+++ b/src/libs/qmleditorwidgets/resources.qrc
@@ -35,7 +35,7 @@
         <file>images/aspect-crop-icon.png</file>
         <file>images/tile-icon-vert-crop.png</file>
         <file>images/tile-icon-hor-crop.png</file>
-        <file>images/tile-icon-hor - scale.png</file>
+        <file>images/tile-icon-hor-scale.png</file>
         <file>images/tile-icon-vert-scale.png</file>
         <file>images/anchor_bottom.png</file>
         <file>images/anchor_bottom@2x.png</file>
diff --git a/src/libs/qmljs/parser/qmljslexer.cpp b/src/libs/qmljs/parser/qmljslexer.cpp
index a4cb83bc74f..0e0a57f7a2f 100644
--- a/src/libs/qmljs/parser/qmljslexer.cpp
+++ b/src/libs/qmljs/parser/qmljslexer.cpp
@@ -32,6 +32,8 @@
 #include <QtCore/qvarlengtharray.h>
 #include <QtCore/qdebug.h>
 
+#include <utils/qtcfallthrough.h>
+
 QT_BEGIN_NAMESPACE
 Q_CORE_EXPORT double qstrtod(const char *s00, char const **se, bool *ok);
 QT_END_NAMESPACE
@@ -759,7 +761,7 @@ again:
                         u = QLatin1Char('\0');
                         break;
                     }
-                    // fall through
+                    Q_FALLTHROUGH();
                 case '1':
                 case '2':
                 case '3':
diff --git a/src/libs/qmljs/qmljscodeformatter.cpp b/src/libs/qmljs/qmljscodeformatter.cpp
index 5d974d735b0..70c17094065 100644
--- a/src/libs/qmljs/qmljscodeformatter.cpp
+++ b/src/libs/qmljs/qmljscodeformatter.cpp
@@ -30,6 +30,8 @@
 #include <QTextBlock>
 #include <QTextDocument>
 
+#include <utils/qtcfallthrough.h>
+
 static Q_LOGGING_CATEGORY(formatterLog, "qtc.qmljs.formatter")
 
 namespace QmlJS {
@@ -278,7 +280,7 @@ void CodeFormatter::recalculateStateAfter(const QTextBlock &block)
                 enter(expression_continuation);
                 break;
             }
-            // fallthrough
+            Q_FALLTHROUGH();
         case ternary_op_after_colon:
         case expression:
             if (tryInsideExpression())
@@ -1142,7 +1144,7 @@ void QtStyleCodeFormatter::onEnter(int newState, int *indentDepth, int *savedInd
             *savedIndentDepth = parentState.savedIndentDepth;
             break;
         }
-        // fallthrough
+        Q_FALLTHROUGH();
     case substatement_open:
         // special case for "foo: {" and "property int foo: {"
         if (parentState.type == binding_assignment)
diff --git a/src/libs/qmljs/qmljsevaluate.cpp b/src/libs/qmljs/qmljsevaluate.cpp
index 0659ee8fb19..44414e27b99 100644
--- a/src/libs/qmljs/qmljsevaluate.cpp
+++ b/src/libs/qmljs/qmljsevaluate.cpp
@@ -29,6 +29,8 @@
 #include "qmljsvalueowner.h"
 #include "parser/qmljsast_p.h"
 
+#include <utils/qtcfallthrough.h>
+
 using namespace QmlJS;
 
 /*!
@@ -444,7 +446,7 @@ bool Evaluate::visit(AST::BinaryExpression *ast)
     //case QSOperator::And: // ### enable once implemented below
     //case QSOperator::Or:
         lhs = value(ast->left);
-        // fallthrough
+        Q_FALLTHROUGH();
     case QSOperator::Assign:
         rhs = value(ast->right);
         break;
diff --git a/src/libs/qmljs/qmljsmodelmanagerinterface.cpp b/src/libs/qmljs/qmljsmodelmanagerinterface.cpp
index 74fa69d8c90..b14bd39a52b 100644
--- a/src/libs/qmljs/qmljsmodelmanagerinterface.cpp
+++ b/src/libs/qmljs/qmljsmodelmanagerinterface.cpp
@@ -37,6 +37,7 @@
 #include <cplusplus/cppmodelmanagerbase.h>
 #include <utils/algorithm.h>
 #include <utils/hostosinfo.h>
+#include <utils/qtcfallthrough.h>
 #include <utils/runextensions.h>
 
 #include <QDir>
@@ -1391,7 +1392,7 @@ ViewerContext ModelManagerInterface::completeVContext(const ViewerContext &vCtx,
         break;
     case ViewerContext::AddAllPathsAndDefaultSelectors:
         res.selectors.append(defaultVCtx.selectors);
-        // fallthrough
+        Q_FALLTHROUGH();
     case ViewerContext::AddAllPaths:
     {
         foreach (const QString &path, defaultVCtx.paths)
@@ -1400,10 +1401,10 @@ ViewerContext ModelManagerInterface::completeVContext(const ViewerContext &vCtx,
         case Dialect::AnyLanguage:
         case Dialect::Qml:
             res.maybeAddPath(info.qtQmlPath);
-            // fallthrough
+            Q_FALLTHROUGH();
         case Dialect::QmlQtQuick1:
             res.maybeAddPath(info.qtImportsPath);
-            // fallthrough
+            Q_FALLTHROUGH();
         case Dialect::QmlQtQuick2:
         case Dialect::QmlQtQuick2Ui:
         {
@@ -1439,7 +1440,7 @@ ViewerContext ModelManagerInterface::completeVContext(const ViewerContext &vCtx,
     }
     case ViewerContext::AddDefaultPathsAndSelectors:
         res.selectors.append(defaultVCtx.selectors);
-        // fallthrough
+        Q_FALLTHROUGH();
     case ViewerContext::AddDefaultPaths:
         foreach (const QString &path, defaultVCtx.paths)
             res.maybeAddPath(path);
diff --git a/src/plugins/autotest/gtest/gtesttreeitem.cpp b/src/plugins/autotest/gtest/gtesttreeitem.cpp
index fb71f695e44..e31bd5ec3fb 100644
--- a/src/plugins/autotest/gtest/gtesttreeitem.cpp
+++ b/src/plugins/autotest/gtest/gtesttreeitem.cpp
@@ -277,6 +277,8 @@ bool GTestTreeItem::modify(const TestParseResult *result)
 
 TestTreeItem *GTestTreeItem::createParentGroupNode() const
 {
+    if (type() != TestCase)
+        return nullptr;
     const QFileInfo fileInfo(filePath());
     const QFileInfo base(fileInfo.absolutePath());
     return new GTestTreeItem(base.baseName(), fileInfo.absolutePath(), TestTreeItem::GroupNode);
diff --git a/src/plugins/autotest/testcodeparser.cpp b/src/plugins/autotest/testcodeparser.cpp
index ea2d59d3d19..6ebc559597d 100644
--- a/src/plugins/autotest/testcodeparser.cpp
+++ b/src/plugins/autotest/testcodeparser.cpp
@@ -42,6 +42,7 @@
 #include <utils/algorithm.h>
 #include <utils/mapreduce.h>
 #include <utils/qtcassert.h>
+#include <utils/qtcfallthrough.h>
 #include <utils/runextensions.h>
 
 #include <QDirIterator>
@@ -276,7 +277,7 @@ bool TestCodeParser::postponed(const QStringList &fileList)
                     m_reparseTimer.start();
                     return true;
                 }
-                // intentional fall-through
+                Q_FALLTHROUGH();
             default:
                 m_postponedFiles.insert(fileList.first());
                 m_reparseTimer.stop();
diff --git a/src/plugins/clangcodemodel/clangbackendcommunicator.cpp b/src/plugins/clangcodemodel/clangbackendcommunicator.cpp
index 1abd6982edf..193e6dfbff3 100644
--- a/src/plugins/clangcodemodel/clangbackendcommunicator.cpp
+++ b/src/plugins/clangcodemodel/clangbackendcommunicator.cpp
@@ -70,11 +70,9 @@ static QString backendProcessPath()
 namespace ClangCodeModel {
 namespace Internal {
 
-class DummyBackendSender : public BackendSender
+class DummyBackendSender : public ClangBackEnd::ClangCodeModelServerInterface
 {
 public:
-    DummyBackendSender() : BackendSender(nullptr) {}
-
     void end() override {}
     void registerTranslationUnitsForEditor(const RegisterTranslationUnitForEditorMessage &) override {}
     void updateTranslationUnitsForEditor(const UpdateTranslationUnitsForEditorMessage &) override {}
@@ -87,10 +85,10 @@ public:
     void requestDocumentAnnotations(const RequestDocumentAnnotationsMessage &) override {}
     void requestReferences(const RequestReferencesMessage &) override {}
     void requestFollowSymbol(const RequestFollowSymbolMessage &) override {}
+    void requestToolTip(const RequestToolTipMessage &) override {}
     void updateVisibleTranslationUnits(const UpdateVisibleTranslationUnitsMessage &) override {}
 };
 
-
 BackendCommunicator::BackendCommunicator()
     : m_connection(&m_receiver)
     , m_sender(new DummyBackendSender())
@@ -521,20 +519,6 @@ void BackendCommunicator::initializeBackendWithCurrentData()
     registerCurrentCodeModelUiHeaders();
     restoreCppEditorDocuments();
     updateTranslationUnitVisiblity();
-
-    emit backendReinitialized();
-}
-
-BackendSender *BackendCommunicator::setBackendSender(BackendSender *sender)
-{
-    BackendSender *previousSender = m_sender.take();
-    m_sender.reset(sender);
-    return previousSender;
-}
-
-void BackendCommunicator::killBackendProcess()
-{
-    m_connection.processForTestOnly()->kill();
 }
 
 void BackendCommunicator::registerTranslationUnitsForEditor(const FileContainers &fileContainers)
diff --git a/src/plugins/clangcodemodel/clangbackendcommunicator.h b/src/plugins/clangcodemodel/clangbackendcommunicator.h
index b3cb166a391..748f2a00658 100644
--- a/src/plugins/clangcodemodel/clangbackendcommunicator.h
+++ b/src/plugins/clangcodemodel/clangbackendcommunicator.h
@@ -113,13 +113,6 @@ public:
 
     bool isNotWaitingForCompletion() const;
 
-public: // for tests
-    BackendSender *setBackendSender(BackendSender *sender);
-    void killBackendProcess();
-
-signals: // for tests
-    void backendReinitialized();
-
 private:
     void initializeBackend();
     void initializeBackendWithCurrentData();
@@ -147,7 +140,7 @@ private:
     BackendReceiver m_receiver;
     ClangBackEnd::ClangCodeModelConnectionClient m_connection;
     QTimer m_backendStartTimeOut;
-    QScopedPointer<BackendSender> m_sender;
+    QScopedPointer<ClangBackEnd::ClangCodeModelServerInterface> m_sender;
     int m_connectedCount = 0;
 };
 
diff --git a/src/plugins/clangcodemodel/clangbackendsender.cpp b/src/plugins/clangcodemodel/clangbackendsender.cpp
index f6f8aea1cf8..4dee88e576d 100644
--- a/src/plugins/clangcodemodel/clangbackendsender.cpp
+++ b/src/plugins/clangcodemodel/clangbackendsender.cpp
@@ -141,10 +141,5 @@ void BackendSender::updateVisibleTranslationUnits(const UpdateVisibleTranslation
     m_connection->serverProxy().updateVisibleTranslationUnits(message);
 }
 
-bool BackendSender::isConnected() const
-{
-    return m_connection && m_connection->isConnected();
-}
-
 } // namespace Internal
 } // namespace ClangCodeModel
diff --git a/src/plugins/clangcodemodel/clangbackendsender.h b/src/plugins/clangcodemodel/clangbackendsender.h
index f01326a4dc3..16776f7f105 100644
--- a/src/plugins/clangcodemodel/clangbackendsender.h
+++ b/src/plugins/clangcodemodel/clangbackendsender.h
@@ -52,9 +52,6 @@ public:
     void requestFollowSymbol(const ClangBackEnd::RequestFollowSymbolMessage &message) override;
     void updateVisibleTranslationUnits(const ClangBackEnd::UpdateVisibleTranslationUnitsMessage &message) override;
 
-private:
-    bool isConnected() const;
-
 private:
     ClangBackEnd::ClangCodeModelConnectionClient *m_connection = nullptr;
 };
diff --git a/src/plugins/clangcodemodel/clangcompletionassistprocessor.cpp b/src/plugins/clangcodemodel/clangcompletionassistprocessor.cpp
index 54d960ff03c..644c5d778c9 100644
--- a/src/plugins/clangcodemodel/clangcompletionassistprocessor.cpp
+++ b/src/plugins/clangcodemodel/clangcompletionassistprocessor.cpp
@@ -54,6 +54,7 @@
 #include <utils/textutils.h>
 #include <utils/mimetypes/mimedatabase.h>
 #include <utils/qtcassert.h>
+#include <utils/qtcfallthrough.h>
 
 #include <QDirIterator>
 #include <QTextDocument>
@@ -242,7 +243,7 @@ IAssistProposal *ClangCompletionAssistProcessor::startCompletionHelper()
     case ClangCompletionContextAnalyzer::CompleteSlot:
         modifiedFileContent = modifyInput(m_interface->textDocument(),
                                           analyzer.positionEndOfExpression());
-        // Fall through!
+        Q_FALLTHROUGH();
     case ClangCompletionContextAnalyzer::PassThroughToLibClang: {
         m_addSnippets = m_completionOperator == T_EOF_SYMBOL;
         m_sentRequestType = NormalCompletion;
diff --git a/src/plugins/clangstaticanalyzer/clangstaticanalyzerlogfilereader.cpp b/src/plugins/clangstaticanalyzer/clangstaticanalyzerlogfilereader.cpp
index 5b394d60d32..6e361b0a1aa 100644
--- a/src/plugins/clangstaticanalyzer/clangstaticanalyzerlogfilereader.cpp
+++ b/src/plugins/clangstaticanalyzer/clangstaticanalyzerlogfilereader.cpp
@@ -32,6 +32,7 @@
 #include <QXmlStreamReader>
 
 #include <utils/qtcassert.h>
+#include <utils/qtcfallthrough.h>
 
 namespace ClangStaticAnalyzer {
 namespace Internal {
@@ -100,22 +101,26 @@ QList<Diagnostic> LogFileReader::read(const QString &filePath, QString *errorMes
         if (errorMessage) {
             *errorMessage = tr("Could not read file \"%1\": UnexpectedElementError.")
                                 .arg(filePath);
-        } // fall-through
+        }
+        Q_FALLTHROUGH();
     case QXmlStreamReader::CustomError:
         if (errorMessage) {
             *errorMessage = tr("Could not read file \"%1\": CustomError.")
                                 .arg(filePath);
-        }  // fall-through
+        }
+        Q_FALLTHROUGH();
     case QXmlStreamReader::NotWellFormedError:
         if (errorMessage) {
             *errorMessage = tr("Could not read file \"%1\": NotWellFormedError.")
                                 .arg(filePath);
-        }  // fall-through
+        }
+        Q_FALLTHROUGH();
     case QXmlStreamReader::PrematureEndOfDocumentError:
         if (errorMessage) {
             *errorMessage = tr("Could not read file \"%1\": PrematureEndOfDocumentError.")
                                 .arg(filePath);
-        } // fall-through
+        }
+        Q_FALLTHROUGH();
     default:
         return emptyList;
     }
diff --git a/src/plugins/cpptools/cppcodeformatter.cpp b/src/plugins/cpptools/cppcodeformatter.cpp
index 68c83f29f9a..064479b9d57 100644
--- a/src/plugins/cpptools/cppcodeformatter.cpp
+++ b/src/plugins/cpptools/cppcodeformatter.cpp
@@ -29,6 +29,7 @@
 #include <cplusplus/Lexer.h>
 
 #include <utils/qtcassert.h>
+#include <utils/qtcfallthrough.h>
 
 #include <QDebug>
 #include <QMetaEnum>
@@ -848,7 +849,7 @@ bool CodeFormatter::tryDeclaration()
                 return true;
             }
         }
-        // fallthrough
+        Q_FALLTHROUGH();
     case T_CHAR:
     case T_CHAR16_T:
     case T_CHAR32_T:
@@ -1231,7 +1232,7 @@ void QtStyleCodeFormatter::onEnter(int newState, int *indentDepth, int *savedInd
     case assign_open:
         if (parentState.type == assign_open_or_initializer)
             break;
-        // fallthrough
+        Q_FALLTHROUGH();
     case assign_open_or_initializer:
         if (!lastToken && m_styleSettings.alignAssignments)
             *paddingDepth = nextTokenPosition-*indentDepth;
diff --git a/src/plugins/cpptools/cppqtstyleindenter.cpp b/src/plugins/cpptools/cppqtstyleindenter.cpp
index 8877d5b49c9..8f5993d2bfa 100644
--- a/src/plugins/cpptools/cppqtstyleindenter.cpp
+++ b/src/plugins/cpptools/cppqtstyleindenter.cpp
@@ -29,6 +29,8 @@
 #include "cpptoolssettings.h"
 #include "cppcodestylepreferences.h"
 
+#include <utils/qtcfallthrough.h>
+
 #include <QChar>
 #include <QTextDocument>
 #include <QTextBlock>
@@ -79,7 +81,7 @@ static bool isElectricInLine(const QChar ch, const QString &text)
             return true;
         }
 
-        // fall-through
+        Q_FALLTHROUGH();
         // lines that start with : might have a constructor initializer list
     case '<':
     case '>': {
diff --git a/src/plugins/debugger/namedemangler/parsetreenodes.cpp b/src/plugins/debugger/namedemangler/parsetreenodes.cpp
index 3f40136fbe2..4981791f718 100644
--- a/src/plugins/debugger/namedemangler/parsetreenodes.cpp
+++ b/src/plugins/debugger/namedemangler/parsetreenodes.cpp
@@ -27,6 +27,8 @@
 
 #include "demanglerexceptions.h"
 
+#include "../../../libs/utils/qtcfallthrough.h"
+
 #include <iostream>
 #include <cctype>
 #include <cstring>
@@ -1293,25 +1295,29 @@ void ExprPrimaryNode::parse()
         switch (typeNode->type()) {
         case BuiltinTypeNode::UnsignedShortType:
         case BuiltinTypeNode::UnsignedIntType:
-            m_suffix = "U"; // Fall-through.
+            m_suffix = "U";
+            Q_FALLTHROUGH();
         case BuiltinTypeNode::SignedShortType:
         case BuiltinTypeNode::SignedIntType:
             PARSE_RULE_AND_ADD_RESULT_AS_CHILD(NumberNode);
             break;
         case BuiltinTypeNode::UnsignedLongType:
-            m_suffix = "U"; // Fall-through.
+            m_suffix = "U";
+            Q_FALLTHROUGH();
         case BuiltinTypeNode::SignedLongType:
             m_suffix = "L";
             PARSE_RULE_AND_ADD_RESULT_AS_CHILD(NumberNode);
             break;
         case BuiltinTypeNode::UnsignedLongLongType:
-            m_suffix = "U"; // Fall-through.
+            m_suffix = "U";
+            Q_FALLTHROUGH();
         case BuiltinTypeNode::SignedLongLongType:
             m_suffix = "LL";
             PARSE_RULE_AND_ADD_RESULT_AS_CHILD(NumberNode);
             break;
         case BuiltinTypeNode::FloatType:
-            m_suffix = "f"; // Fall-through.
+            m_suffix = "f";
+            Q_FALLTHROUGH();
         case BuiltinTypeNode::DoubleType:
             PARSE_RULE_AND_ADD_RESULT_AS_CHILD(FloatValueNode);
             break;
diff --git a/src/plugins/fakevim/fakevimhandler.cpp b/src/plugins/fakevim/fakevimhandler.cpp
index 74a9fc169fc..60b277f5b98 100644
--- a/src/plugins/fakevim/fakevimhandler.cpp
+++ b/src/plugins/fakevim/fakevimhandler.cpp
@@ -60,6 +60,7 @@
 
 #include <utils/hostosinfo.h>
 #include <utils/qtcassert.h>
+#include <utils/qtcfallthrough.h>
 
 #include <QDebug>
 #include <QFile>
@@ -5662,7 +5663,7 @@ bool FakeVimHandler::Private::handleExMapCommand(const ExCommand &cmd0) // :map
             foreach (char c, modes)
                 MappingsIterator(&g.mappings, c, key).remove();
             break;
-        case Map: // fall through
+        case Map: Q_FALLTHROUGH();
         case Noremap: {
             Inputs inputs(rhs, type == Noremap, silent);
             foreach (char c, modes)
diff --git a/src/plugins/help/localhelpmanager.cpp b/src/plugins/help/localhelpmanager.cpp
index 5e13d10b3e6..daeaf5eb561 100644
--- a/src/plugins/help/localhelpmanager.cpp
+++ b/src/plugins/help/localhelpmanager.cpp
@@ -287,6 +287,7 @@ void LocalHelpManager::setupGuiHelpEngine()
     if (m_needsCollectionFile) {
         m_needsCollectionFile = false;
         helpEngine().setCollectionFile(Core::HelpManager::collectionFilePath());
+        m_guiNeedsSetup = true;
     }
 
     if (m_guiNeedsSetup) {
diff --git a/src/plugins/projectexplorer/abi.cpp b/src/plugins/projectexplorer/abi.cpp
index 054889c8666..7835788c0bc 100644
--- a/src/plugins/projectexplorer/abi.cpp
+++ b/src/plugins/projectexplorer/abi.cpp
@@ -26,6 +26,7 @@
 #include "abi.h"
 
 #include <utils/fileutils.h>
+#include <utils/qtcfallthrough.h>
 
 #include <QDebug>
 #include <QtEndian>
@@ -50,6 +51,27 @@ namespace ProjectExplorer {
 // Helpers
 // --------------------------------------------------------------------------
 
+static Abi::Architecture architectureFromQt()
+{
+    const QString arch = QSysInfo::buildCpuArchitecture();
+    if (arch.startsWith("arm"))
+        return Abi::ArmArchitecture;
+    if (arch.startsWith("x86") || arch == "i386")
+        return Abi::X86Architecture;
+    if (arch == "ia64")
+        return Abi::ItaniumArchitecture;
+    if (arch.startsWith("mips"))
+        return Abi::MipsArchitecture;
+    if (arch.startsWith("power"))
+        return Abi::PowerPCArchitecture;
+    if (arch.startsWith("sh")) // Not in Qt documentation!
+        return Abi::ShArchitecture;
+    if (arch.startsWith("avr")) // Not in Qt documentation!
+        return Abi::AvrArchitecture;
+
+    return Abi::UnknownArchitecture;
+}
+
 static quint8 getUint8(const QByteArray &data, int pos)
 {
     return static_cast<quint8>(data.at(pos));
@@ -681,7 +703,8 @@ QString Abi::toString(const Architecture &a)
         return QLatin1String("itanium");
     case ShArchitecture:
         return QLatin1String("sh");
-    case UnknownArchitecture: // fall through!
+    case UnknownArchitecture:
+        Q_FALLTHROUGH();
     default:
         return QLatin1String("unknown");
     }
@@ -706,7 +729,8 @@ QString Abi::toString(const OS &o)
         return QLatin1String("qnx");
     case BareMetalOS:
         return QLatin1String("baremetal");
-    case UnknownOS: // fall through!
+    case UnknownOS:
+        Q_FALLTHROUGH();
     default:
         return QLatin1String("unknown");
     };
@@ -754,7 +778,8 @@ QString Abi::toString(const OSFlavor &of)
     case GenericQnxFlavor:
     case GenericBareMetalFlavor:
         return QLatin1String("generic");
-    case UnknownFlavor: // fall through!
+    case UnknownFlavor:
+        Q_FALLTHROUGH();
     default:
         return QLatin1String("unknown");
     }
@@ -771,7 +796,8 @@ QString Abi::toString(const BinaryFormat &bf)
         return QLatin1String("mach_o");
     case RuntimeQmlFormat:
         return QLatin1String("qml_rt");
-    case UnknownFormat: // fall through!
+    case UnknownFormat:
+        Q_FALLTHROUGH();
     default:
         return QLatin1String("unknown");
     }
@@ -835,7 +861,7 @@ Abi::OSFlavor Abi::flavorForMsvcVersion(int version)
 
 Abi Abi::hostAbi()
 {
-    Architecture arch = QTC_CPU; // define set by qmake
+    Architecture arch = architectureFromQt();
     OS os = UnknownOS;
     OSFlavor subos = UnknownFlavor;
     BinaryFormat format = UnknownFormat;
diff --git a/src/plugins/projectexplorer/buildtargetinfo.h b/src/plugins/projectexplorer/buildtargetinfo.h
index fa179104375..d93c03e6fcb 100644
--- a/src/plugins/projectexplorer/buildtargetinfo.h
+++ b/src/plugins/projectexplorer/buildtargetinfo.h
@@ -96,7 +96,8 @@ public:
 
     Utils::FileName targetFilePath(const QString &targetName) {
         return Utils::findOrDefault(list, [&targetName](const BuildTargetInfo &ti) {
-            return ti.targetName == targetName;
+            return ti.targetName == targetName
+                || ti.projectFilePath.toString() == targetName;
         }).targetFilePath;
     }
 
diff --git a/src/plugins/projectexplorer/projectexplorer.pro b/src/plugins/projectexplorer/projectexplorer.pro
index e519159666c..5c91002043a 100644
--- a/src/plugins/projectexplorer/projectexplorer.pro
+++ b/src/plugins/projectexplorer/projectexplorer.pro
@@ -332,11 +332,4 @@ journald {
 
 RESOURCES += projectexplorer.qrc
 
-# Some way to override the architecture used in Abi:
-!isEmpty($$(QTC_CPU)) {
-    DEFINES += QTC_CPU=$$(QTC_CPU)
-} else {
-    DEFINES += QTC_CPU=X86Architecture
-}
-
 DEFINES += PROJECTEXPLORER_LIBRARY
diff --git a/src/plugins/projectexplorer/projectexplorer.qbs b/src/plugins/projectexplorer/projectexplorer.qbs
index dd43d0d1ece..884444a52e7 100644
--- a/src/plugins/projectexplorer/projectexplorer.qbs
+++ b/src/plugins/projectexplorer/projectexplorer.qbs
@@ -15,8 +15,6 @@ Project {
         Depends { name: "TextEditor" }
         Depends { name: "app_version_header" }
 
-        cpp.defines: base.concat("QTC_CPU=X86Architecture")
-
         Group {
             name: "General"
             files: [
diff --git a/src/plugins/projectexplorer/projectwelcomepage.cpp b/src/plugins/projectexplorer/projectwelcomepage.cpp
index f1eb287048d..141f6e55a3a 100644
--- a/src/plugins/projectexplorer/projectwelcomepage.cpp
+++ b/src/plugins/projectexplorer/projectwelcomepage.cpp
@@ -385,9 +385,9 @@ public:
             if (m_activeSwitchToRect.contains(pos))
                 sessionModel->switchToSession(sessionName);
             else if (m_activeActionRects[0].contains(pos))
-                sessionModel->cloneSession(sessionName);
+                sessionModel->cloneSession(ICore::mainWindow(), sessionName);
             else if (m_activeActionRects[1].contains(pos))
-                sessionModel->renameSession(sessionName);
+                sessionModel->renameSession(ICore::mainWindow(), sessionName);
             else if (m_activeActionRects[2].contains(pos))
                 sessionModel->deleteSession(sessionName);
             return true;
diff --git a/src/plugins/projectexplorer/sessiondialog.h b/src/plugins/projectexplorer/sessiondialog.h
index e1ced4884d1..654736694ed 100644
--- a/src/plugins/projectexplorer/sessiondialog.h
+++ b/src/plugins/projectexplorer/sessiondialog.h
@@ -59,7 +59,7 @@ class SessionNameInputDialog : public QDialog
     Q_OBJECT
 
 public:
-    explicit SessionNameInputDialog(QWidget *parent = nullptr);
+    explicit SessionNameInputDialog(QWidget *parent);
 
     void setActionText(const QString &actionText, const QString &openActionText);
     void setValue(const QString &value);
diff --git a/src/plugins/projectexplorer/sessionmodel.cpp b/src/plugins/projectexplorer/sessionmodel.cpp
index 1f6064ffe4d..21b3ec3f48a 100644
--- a/src/plugins/projectexplorer/sessionmodel.cpp
+++ b/src/plugins/projectexplorer/sessionmodel.cpp
@@ -186,9 +186,9 @@ void SessionModel::resetSessions()
     endResetModel();
 }
 
-void SessionModel::newSession()
+void SessionModel::newSession(QWidget *parent)
 {
-    SessionNameInputDialog sessionInputDialog;
+    SessionNameInputDialog sessionInputDialog(parent);
     sessionInputDialog.setWindowTitle(tr("New Session Name"));
     sessionInputDialog.setActionText(tr("&Create"), tr("Create and &Open"));
 
@@ -197,9 +197,9 @@ void SessionModel::newSession()
     });
 }
 
-void SessionModel::cloneSession(const QString &session)
+void SessionModel::cloneSession(QWidget *parent, const QString &session)
 {
-    SessionNameInputDialog sessionInputDialog;
+    SessionNameInputDialog sessionInputDialog(parent);
     sessionInputDialog.setWindowTitle(tr("New Session Name"));
     sessionInputDialog.setActionText(tr("&Clone"), tr("Clone and &Open"));
     sessionInputDialog.setValue(session + " (2)");
@@ -218,9 +218,9 @@ void SessionModel::deleteSession(const QString &session)
     endResetModel();
 }
 
-void SessionModel::renameSession(const QString &session)
+void SessionModel::renameSession(QWidget *parent, const QString &session)
 {
-    SessionNameInputDialog sessionInputDialog;
+    SessionNameInputDialog sessionInputDialog(parent);
     sessionInputDialog.setWindowTitle(tr("Rename Session"));
     sessionInputDialog.setActionText(tr("&Rename"), tr("Rename and &Open"));
     sessionInputDialog.setValue(session);
diff --git a/src/plugins/projectexplorer/sessionmodel.h b/src/plugins/projectexplorer/sessionmodel.h
index 92c0f8b6aba..7feff2b433e 100644
--- a/src/plugins/projectexplorer/sessionmodel.h
+++ b/src/plugins/projectexplorer/sessionmodel.h
@@ -70,10 +70,10 @@ signals:
 
 public slots:
     void resetSessions();
-    void newSession();
-    void cloneSession(const QString &session);
+    void newSession(QWidget *parent);
+    void cloneSession(QWidget *parent, const QString &session);
     void deleteSession(const QString &session);
-    void renameSession(const QString &session);
+    void renameSession(QWidget *parent, const QString &session);
     void switchToSession(const QString &session);
 
 private:
diff --git a/src/plugins/projectexplorer/sessionview.cpp b/src/plugins/projectexplorer/sessionview.cpp
index ae72e34db50..3f99aa6794c 100644
--- a/src/plugins/projectexplorer/sessionview.cpp
+++ b/src/plugins/projectexplorer/sessionview.cpp
@@ -89,7 +89,7 @@ SessionView::SessionView(QWidget *parent)
 
 void SessionView::createNewSession()
 {
-    m_sessionModel.newSession();
+    m_sessionModel.newSession(this);
 }
 
 void SessionView::deleteCurrentSession()
@@ -99,12 +99,12 @@ void SessionView::deleteCurrentSession()
 
 void SessionView::cloneCurrentSession()
 {
-    m_sessionModel.cloneSession(currentSession());
+    m_sessionModel.cloneSession(this, currentSession());
 }
 
 void SessionView::renameCurrentSession()
 {
-    m_sessionModel.renameSession(currentSession());
+    m_sessionModel.renameSession(this, currentSession());
 }
 
 void SessionView::switchToCurrentSession()
diff --git a/src/plugins/qbsprojectmanager/defaultpropertyprovider.cpp b/src/plugins/qbsprojectmanager/defaultpropertyprovider.cpp
index 76e7a162f3c..5ff0cece060 100644
--- a/src/plugins/qbsprojectmanager/defaultpropertyprovider.cpp
+++ b/src/plugins/qbsprojectmanager/defaultpropertyprovider.cpp
@@ -74,63 +74,49 @@ static QString extractToolchainPrefix(QString *compilerName)
     return prefix;
 }
 
-static QStringList targetOSList(const ProjectExplorer::Abi &abi, const ProjectExplorer::Kit *k)
+static QString targetPlatform(const ProjectExplorer::Abi &abi, const ProjectExplorer::Kit *k)
 {
     const Core::Id device = ProjectExplorer::DeviceTypeKitInformation::deviceTypeId(k);
-    QStringList os;
     switch (abi.os()) {
     case ProjectExplorer::Abi::WindowsOS:
-        if (device == WINRT_DEVICE_TYPE_LOCAL ||
-                device == WINRT_DEVICE_TYPE_PHONE ||
-                device == WINRT_DEVICE_TYPE_EMULATOR) {
-            os << QLatin1String("winrt");
-        } else if (abi.osFlavor() == ProjectExplorer::Abi::WindowsCEFlavor) {
-            os << QLatin1String("windowsce");
-        }
-        os << QLatin1String("windows");
-        break;
-    case ProjectExplorer::Abi::DarwinOS:
+        return QLatin1String("windows");
+   case ProjectExplorer::Abi::DarwinOS:
         if (device == DESKTOP_DEVICE_TYPE)
-            os << QLatin1String("macos") << QLatin1String("osx");
-        else if (device == IOS_DEVICE_TYPE)
-            os << QLatin1String("ios");
-        else if (device == IOS_SIMULATOR_TYPE)
-            os << QLatin1String("ios-simulator") << QLatin1String("ios");
-        os << QLatin1String("darwin") << QLatin1String("bsd") << QLatin1String("unix");
-        break;
+            return QLatin1String("macos");
+        if (device == IOS_DEVICE_TYPE)
+            return QLatin1String("ios");
+        if (device == IOS_SIMULATOR_TYPE)
+            return QLatin1String("ios-simulator");
+        return QLatin1String("darwin");
     case ProjectExplorer::Abi::LinuxOS:
         if (abi.osFlavor() == ProjectExplorer::Abi::AndroidLinuxFlavor)
-            os << QLatin1String("android");
-        os << QLatin1String("linux") << QLatin1String("unix");
-        break;
+            return QLatin1String("android");
+        return QLatin1String("linux");
     case ProjectExplorer::Abi::BsdOS:
         switch (abi.osFlavor()) {
         case ProjectExplorer::Abi::FreeBsdFlavor:
-            os << QLatin1String("freebsd");
-            break;
+            return QLatin1String("freebsd");
         case ProjectExplorer::Abi::NetBsdFlavor:
-            os << QLatin1String("netbsd");
-            break;
+            return QLatin1String("netbsd");
         case ProjectExplorer::Abi::OpenBsdFlavor:
-            os << QLatin1String("openbsd");
-            break;
+            return QLatin1String("openbsd");
         default:
             break;
         }
-        os << QLatin1String("bsd") << QLatin1String("unix");
-        break;
+        return QLatin1String("bsd");
     case ProjectExplorer::Abi::QnxOS:
-        os << QLatin1String("qnx") << QLatin1String("unix");
-        break;
+        return QLatin1String("qnx");
     case ProjectExplorer::Abi::UnixOS:
         if (abi.osFlavor() == ProjectExplorer::Abi::SolarisUnixFlavor)
-            os << QLatin1String("solaris");
-        os << QLatin1String("unix");
-        break;
-    default:
+            return QLatin1String("solaris");
+        return QLatin1String("unix");
+    case ProjectExplorer::Abi::VxWorks:
+        return QLatin1String("vxworks");
+    case ProjectExplorer::Abi::BareMetalOS:
+    case ProjectExplorer::Abi::UnknownOS:
         break;
     }
-    return os;
+    return QString();
 }
 
 static QStringList toolchainList(const ProjectExplorer::ToolChain *tc)
@@ -258,7 +244,7 @@ QVariantMap DefaultPropertyProvider::autoGeneratedProperties(const ProjectExplor
             ProjectExplorer::Abi::abiFromTargetTriplet(mainTc->originalTargetTriple())) {
         data.insert(QLatin1String(QBS_ARCHITECTURE), architecture(mainTc->targetAbi()));
     }
-    data.insert(QLatin1String(QBS_TARGETOS), targetOSList(targetAbi, k));
+    data.insert(QLatin1String(QBS_TARGETPLATFORM), targetPlatform(targetAbi, k));
 
     QStringList toolchain = toolchainList(mainTc);
 
diff --git a/src/plugins/qbsprojectmanager/qbsprojectmanagerconstants.h b/src/plugins/qbsprojectmanager/qbsprojectmanagerconstants.h
index 71d199f518e..c0d8c2d9d30 100644
--- a/src/plugins/qbsprojectmanager/qbsprojectmanagerconstants.h
+++ b/src/plugins/qbsprojectmanager/qbsprojectmanagerconstants.h
@@ -76,7 +76,7 @@ const char QBS_GROUP_ICON[] = ":/qbsprojectmanager/images/groups.png";
 const char QBS_PRODUCT_OVERLAY_ICON[] = ":/qbsprojectmanager/images/productgear.png";
 
 // Toolchain related settings:
-const char QBS_TARGETOS[] = "qbs.targetOS";
+const char QBS_TARGETPLATFORM[] = "qbs.targetPlatform";
 const char QBS_SYSROOT[] = "qbs.sysroot";
 const char QBS_ARCHITECTURES[] = "qbs.architectures";
 const char QBS_ARCHITECTURE[] = "qbs.architecture";
diff --git a/src/plugins/qmlprofiler/inputeventsmodel.cpp b/src/plugins/qmlprofiler/inputeventsmodel.cpp
index 2c8be86fe43..6af76231959 100644
--- a/src/plugins/qmlprofiler/inputeventsmodel.cpp
+++ b/src/plugins/qmlprofiler/inputeventsmodel.cpp
@@ -29,6 +29,8 @@
 
 #include <timeline/timelineformattime.h>
 
+#include <utils/qtcfallthrough.h>
+
 #include <QKeyEvent>
 #include <QMouseEvent>
 #include <QMetaEnum>
@@ -84,7 +86,7 @@ QVariantMap InputEventsModel::details(int index) const
     switch (event.type) {
     case InputKeyPress:
         type = tr("Key Press");
-        // fallthrough
+        Q_FALLTHROUGH();
     case InputKeyRelease:
         if (type.isEmpty())
             type = tr("Key Release");
@@ -98,11 +100,11 @@ QVariantMap InputEventsModel::details(int index) const
         break;
     case InputMouseDoubleClick:
         type = tr("Double Click");
-        // fallthrough
+        Q_FALLTHROUGH();
     case InputMousePress:
         if (type.isEmpty())
             type = tr("Mouse Press");
-        // fallthrough
+        Q_FALLTHROUGH();
     case InputMouseRelease:
         if (type.isEmpty())
             type = tr("Mouse Release");
diff --git a/src/plugins/qtsupport/QtSupport.json.in b/src/plugins/qtsupport/QtSupport.json.in
index 9198b0d5a36..6ee539dc311 100644
--- a/src/plugins/qtsupport/QtSupport.json.in
+++ b/src/plugins/qtsupport/QtSupport.json.in
@@ -25,13 +25,6 @@
         \"    <comment>Linguist compiled translations</comment>\",
         \"    <glob pattern=\'*.qm\'/>\",
         \"  </mime-type>\",
-        \"  <mime-type type=\'application/x-linguist\'>\",
-        \"    <comment>Linguist source translations</comment>\",
-        \"    <magic>\",
-        \"      <match value=\'&lt;TS\' type=\'string\' offset=\'0:256\'/>\",
-        \"    </magic>\",
-        \"    <glob pattern=\'*.ts\' weight=\'70\'/>\",
-        \"  </mime-type>\",
         \"  <mime-type type=\'application/scxml+xml\'>\",
         \"    <comment>SCXML State Chart</comment>\",
         \"    <sub-class-of type=\'application/xml\'/>\",
diff --git a/src/plugins/scxmleditor/plugin_interface/scxmltagutils.cpp b/src/plugins/scxmleditor/plugin_interface/scxmltagutils.cpp
index 41e114e160a..4bf84f8782b 100644
--- a/src/plugins/scxmleditor/plugin_interface/scxmltagutils.cpp
+++ b/src/plugins/scxmleditor/plugin_interface/scxmltagutils.cpp
@@ -29,6 +29,7 @@
 #include "serializer.h"
 
 #include <utils/qtcassert.h>
+#include <utils/qtcfallthrough.h>
 
 #include <QAction>
 #include <QPointF>
@@ -112,7 +113,7 @@ QVector<TagType> allowedChildTypes(TagType tagType)
     case State:
         childTags << Initial;
         childTags << Final;
-        // FALL THROUGH
+        Q_FALLTHROUGH();
     case Parallel:
         childTags << OnEntry;
         childTags << OnExit;
@@ -135,7 +136,7 @@ QVector<TagType> allowedChildTypes(TagType tagType)
     case If:
         childTags << ElseIf;
         childTags << Else;
-        // FALL THROUGH
+        Q_FALLTHROUGH();
     case Transition:
     case OnEntry:
     case OnExit:
@@ -169,7 +170,7 @@ QVector<TagType> allowedChildTypes(TagType tagType)
         break;
     case Invoke:
         childTags << Finalize;
-        // FALL THROUGH
+        Q_FALLTHROUGH();
     case Donedata:
     case Send:
         childTags << Param;
@@ -211,7 +212,7 @@ QVector<TagType> childTypes(TagType tagType)
     case If:
         childTags << ElseIf;
         childTags << Else;
-        // FALL THROUGH
+        Q_FALLTHROUGH();
     case Transition:
     case OnEntry:
     case OnExit:
@@ -245,7 +246,7 @@ QVector<TagType> childTypes(TagType tagType)
         break;
     case Invoke:
         childTags << Finalize;
-        // FALL THROUGH
+        Q_FALLTHROUGH();
     case Donedata:
     case Send:
         childTags << Param;
diff --git a/src/plugins/valgrind/valgrindengine.cpp b/src/plugins/valgrind/valgrindengine.cpp
index cfe6648b012..7b6309247fc 100644
--- a/src/plugins/valgrind/valgrindengine.cpp
+++ b/src/plugins/valgrind/valgrindengine.cpp
@@ -88,6 +88,10 @@ void ValgrindToolRunner::start()
 
     connect(&m_runner, &ValgrindRunner::processOutputReceived,
             this, &ValgrindToolRunner::receiveProcessOutput);
+    connect(&m_runner, &ValgrindRunner::valgrindExecuted,
+            this, [this](const QString &commandLine) {
+        appendMessage(commandLine, NormalMessageFormat);
+    });
     connect(&m_runner, &ValgrindRunner::processErrorReceived,
             this, &ValgrindToolRunner::receiveProcessError);
     connect(&m_runner, &ValgrindRunner::finished,
diff --git a/src/plugins/valgrind/valgrindrunner.cpp b/src/plugins/valgrind/valgrindrunner.cpp
index 2594f33e95b..692e02d4bec 100644
--- a/src/plugins/valgrind/valgrindrunner.cpp
+++ b/src/plugins/valgrind/valgrindrunner.cpp
@@ -114,6 +114,8 @@ void ValgrindRunner::Private::run()
     valgrind.device = m_device;
     valgrind.commandLineArguments = QtcProcess::joinArgs(fullArgs, m_device->osType());
     Utils::QtcProcess::addArgs(&valgrind.commandLineArguments, m_debuggee.commandLineArguments);
+    emit q->valgrindExecuted(QtcProcess::quoteArg(valgrind.executable) + ' '
+                             + valgrind.commandLineArguments);
 
     if (m_device->type() == ProjectExplorer::Constants::DESKTOP_DEVICE_TYPE)
         m_valgrindProcess.start(valgrind);
diff --git a/src/plugins/valgrind/valgrindrunner.h b/src/plugins/valgrind/valgrindrunner.h
index e567cd88399..2fc308fb7af 100644
--- a/src/plugins/valgrind/valgrindrunner.h
+++ b/src/plugins/valgrind/valgrindrunner.h
@@ -64,6 +64,7 @@ signals:
     void logMessageReceived(const QByteArray &);
     void processOutputReceived(const QString &, Utils::OutputFormat);
     void processErrorReceived(const QString &, QProcess::ProcessError);
+    void valgrindExecuted(const QString &);
     void valgrindStarted(qint64 pid);
     void finished();
     void extraProcessFinished();
diff --git a/src/plugins/winrt/winrtrunnerhelper.cpp b/src/plugins/winrt/winrtrunnerhelper.cpp
index 60ca4f870c8..44dfd25710b 100644
--- a/src/plugins/winrt/winrtrunnerhelper.cpp
+++ b/src/plugins/winrt/winrtrunnerhelper.cpp
@@ -37,6 +37,7 @@
 #include <projectexplorer/target.h>
 #include <qtsupport/baseqtversion.h>
 #include <qtsupport/qtkitinformation.h>
+#include <utils/qtcfallthrough.h>
 #include <utils/qtcprocess.h>
 
 #include <QDir>
@@ -169,7 +170,7 @@ void WinRtRunnerHelper::startWinRtRunner(const RunConf &conf)
             QtcProcess::addArg(&runnerArgs, QStringLiteral("--debugger-arguments"));
             QtcProcess::addArg(&runnerArgs, m_debuggerArguments);
         }
-        // fall through
+        Q_FALLTHROUGH();
     case Start:
         QtcProcess::addArgs(&runnerArgs, QStringLiteral("--start --stop --install --wait 0"));
         connectProcess = true;
diff --git a/src/shared/json/json.cpp b/src/shared/json/json.cpp
index 58e6beb06d1..579fd21649d 100644
--- a/src/shared/json/json.cpp
+++ b/src/shared/json/json.cpp
@@ -51,7 +51,6 @@
 
 #include "json.h"
 
-
 //#define PARSER_DEBUG
 #ifdef PARSER_DEBUG
 static int indent = 0;