CMake: Move to Tr::tr

Change-Id: I169da93b5184351cb915d4c198fd33318fcfe06f
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/cmakeprojectmanager/cmakeprojectnodes.h

@@ -7,8 +7,7 @@
 
 #include <projectexplorer/projectnodes.h>
 
-namespace CMakeProjectManager {
-namespace Internal {
+namespace CMakeProjectManager::Internal {
 
 class CMakeInputsNode : public ProjectExplorer::ProjectNode
 {
@@ -59,5 +58,4 @@ private:
     CMakeConfig m_config;
 };
 
-} // namespace Internal
-} // namespace CMakeProjectManager
+} // CMakeProjectManager::Internal