ProjectExplorer: Use FileName for Node::path

Change-Id: I4a41cfb629be8bb06b4b0616cd4475525e617a51
Reviewed-by: BogDan Vatra <bogdan@kde.org>
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>

src/plugins/cmakeprojectmanager/cmakeprojectnodes.cpp

@@ -33,7 +33,7 @@
 using namespace CMakeProjectManager;
 using namespace CMakeProjectManager::Internal;
 
-CMakeProjectNode::CMakeProjectNode(const QString &fileName)
+CMakeProjectNode::CMakeProjectNode(const Utils::FileName &fileName)
     : ProjectExplorer::ProjectNode(fileName)
 {
 }