ProjectExplorer: "Upstream" line number display for FileNodes

So far only used and set with QBS, but conceptually usable more
generally, and harmless if not used.

Change-Id: I1d2d615f5613340690de22a1c7d716a193fb1f05
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/projectexplorer/projectnodes.cpp

@@ -417,6 +417,14 @@ bool FileNode::supportsAction(ProjectAction action, const Node *node) const
     return parentFolder && parentFolder->supportsAction(action, node);
 }
 
+QString FileNode::displayName() const
+{
+    int l = line();
+    if (l < 0)
+        return Node::displayName();
+    return Node::displayName() + ':' + QString::number(l);
+}
+
 /*!
   \class ProjectExplorer::FolderNode
 

src/plugins/projectexplorer/projectnodes.h

@@ -200,6 +200,7 @@ public:
                  const std::function<FileNode *(const Utils::FileName &fileName)> factory,
                  QFutureInterface<QList<FileNode *>> *future = nullptr);
     bool supportsAction(ProjectAction action, const Node *node) const override;
+    QString displayName() const override;
 
 private:
     FileType m_fileType;

src/plugins/qbsprojectmanager/qbsnodes.cpp

@@ -242,13 +242,6 @@ QbsFileNode::QbsFileNode(const Utils::FileName &filePath,
     setLine(line);
 }
 
-QString QbsFileNode::displayName() const
-{
-    int l = line();
-    if (l < 0)
-        return ProjectExplorer::FileNode::displayName();
-    return ProjectExplorer::FileNode::displayName() + QLatin1Char(':') + QString::number(l);
-}
 
 // ---------------------------------------------------------------------------
 // QbsBaseProjectNode:

src/plugins/qbsprojectmanager/qbsnodes.h

@@ -44,8 +44,6 @@ class QbsFileNode : public ProjectExplorer::FileNode
 public:
     QbsFileNode(const Utils::FileName &filePath, const ProjectExplorer::FileType fileType,
                 int line);
-
-    QString displayName() const override;
 };
 
 // ---------------------------------------------------------------------------