ProjectExplorer: Add a "product" tag to the ProjectNode class

A product is a project node from which a target binary is produced, such
as a Product item in qbs or a .pro file in qmake.

Change-Id: I6a0e6bed6c02684cb03b2b18fed6a1b493fa78b2
Reviewed-by: hjk <hjk@qt.io>

src/plugins/cmakeprojectmanager/cmakeprojectnodes.cpp

@@ -173,6 +173,7 @@ CMakeTargetNode::CMakeTargetNode(const Utils::FileName &directory, const QString
     setPriority(Node::DefaultProjectPriority + 900);
     setIcon(QIcon(":/projectexplorer/images/build.png")); // TODO: Use proper icon!
     setListInProject(false);
+    setIsProduct();
 }
 
 QString CMakeTargetNode::generateId(const Utils::FileName &directory, const QString &target)

src/plugins/designer/resourcehandler.cpp

@@ -104,17 +104,14 @@ void ResourceHandler::updateResourcesHelper(bool updateProjectResources)
             return n->filePath().toString() == fileName;
         });
         if (fileNode) {
-            // Slightly hacky:
-            //       The node types do not tell us whether we are dealing with a proper "product",
-            //       e.g. a qbs product or qmake .pro file. We do *not* want qbs groups
-            //       or qmake .pri files here, as they contain only a subset of the relevant
-            //       files. Luckily, the "show in simplified tree" property appears to match
-            //       exactly what we want here.
+            // We do not want qbs groups or qmake .pri files here, as they contain only a subset
+            // of the relevant files.
             do
                 projectNode = fileNode->parentProjectNode();
-            while (projectNode && !projectNode->showInSimpleTree());
+            while (projectNode && !projectNode->isProduct());
         }
-        QTC_ASSERT(projectNode, projectNode = project->rootProjectNode());
+        if (!projectNode)
+            projectNode = project->rootProjectNode();
 
         QStringList projectQrcFiles;
         projectNode->forEachNode([&](FileNode *node) {

src/plugins/projectexplorer/projectnodes.h

@@ -357,8 +357,15 @@ public:
     virtual QVariant data(Core::Id role) const;
     virtual bool setData(Core::Id role, const QVariant &value) const;
 
+    bool isProduct() const { return m_isProduct; }
+
 protected:
+    void setIsProduct() { m_isProduct = true; }
+
     QString m_target;
+
+private:
+    bool m_isProduct = false;
 };
 
 class PROJECTEXPLORER_EXPORT ContainerNode : public FolderNode

src/plugins/qbsprojectmanager/qbsnodes.cpp

@@ -329,6 +329,7 @@ QbsProductNode::QbsProductNode(const qbs::ProductData &prd) :
 {
     static QIcon productIcon = Core::FileIconProvider::directoryIcon(Constants::QBS_PRODUCT_OVERLAY_ICON);
     setIcon(productIcon);
+    setIsProduct();
 }
 
 bool QbsProductNode::supportsAction(ProjectAction action, const Node *node) const

src/plugins/qmakeprojectmanager/qmakenodes.cpp

@@ -229,7 +229,9 @@ FolderNode::AddNewInformation QmakePriFileNode::addNewInformation(const QStringL
   */
 QmakeProFileNode::QmakeProFileNode(QmakeProject *project, const FileName &filePath, QmakeProFile *pf) :
     QmakePriFileNode(project, this, filePath, pf)
-{ }
+{
+    setIsProduct();
+}
 
 bool QmakeProFileNode::showInSimpleTree() const
 {