InDetMultipleVertexSeedFinder: Fix clang warnings.

Missing override keywords.

InnerDetector/InDetRecTools/InDetMultipleVertexSeedFinder/InDetMultipleVertexSeedFinder/DivisiveMultiSeedFinder.h

@@ -41,11 +41,11 @@ namespace InDet
 /**
  * Clustering method itself
  */   
-   std::vector< std::vector<const Trk::Track *> > seeds(const std::vector<const Trk::Track*>& tracks )const; 
+   virtual std::vector< std::vector<const Trk::Track *> > seeds(const std::vector<const Trk::Track*>& tracks )const override;
 
-   std::vector< std::vector<const Trk::TrackParticleBase *> > seeds(const std::vector<const Trk::TrackParticleBase*>& tracks )const;
+   virtual std::vector< std::vector<const Trk::TrackParticleBase *> > seeds(const std::vector<const Trk::TrackParticleBase*>& tracks )const override;
 
-   std::vector< std::vector<const Trk::TrackParameters *> > seeds(const std::vector<const xAOD::TrackParticle*>& tracks )const;
+   virtual std::vector< std::vector<const Trk::TrackParameters *> > seeds(const std::vector<const xAOD::TrackParticle*>& tracks )const override;
     
   private:
 

InnerDetector/InDetRecTools/InDetMultipleVertexSeedFinder/InDetMultipleVertexSeedFinder/HistogrammingMultiSeedFinder.h

@@ -54,11 +54,11 @@ namespace InDet
 /**
  * Clustering method itself
  */   
-   std::vector< std::vector<const Trk::Track *> > seeds(const std::vector<const Trk::Track*>& tracks )const; 
+   virtual std::vector< std::vector<const Trk::Track *> > seeds(const std::vector<const Trk::Track*>& tracks )const override;
 
-   std::vector< std::vector<const Trk::TrackParticleBase *> > seeds(const std::vector<const Trk::TrackParticleBase*>& tracks )const;
+   virtual std::vector< std::vector<const Trk::TrackParticleBase *> > seeds(const std::vector<const Trk::TrackParticleBase*>& tracks )const override;
     
-   std::vector< std::vector<const Trk::TrackParameters *> > seeds(const std::vector<const xAOD::TrackParticle*>& tracks )const;
+   virtual std::vector< std::vector<const Trk::TrackParameters *> > seeds(const std::vector<const xAOD::TrackParticle*>& tracks )const override;
 
    //  std::pair<std::vector<const Trk::TrackParameters *>, 
    //  std::vector<const xAOD::TrackParticle *> > m_clusterAndOutliers(std::vector<const xAOD::TrackParticle *> tracks_to_clean, xAOD::Vertex * beamposition) const;

InnerDetector/InDetRecTools/InDetMultipleVertexSeedFinder/InDetMultipleVertexSeedFinder/SlidingWindowMultiSeedFinder.h

@@ -41,11 +41,11 @@ namespace InDet
 /**
  * Clustering method itself
  */   
-   std::vector< std::vector<const Trk::Track *> > seeds(const std::vector<const Trk::Track*>& tracks )const; 
+   virtual std::vector< std::vector<const Trk::Track *> > seeds(const std::vector<const Trk::Track*>& tracks )const override;
   
-   std::vector< std::vector<const Trk::TrackParticleBase *> > seeds(const std::vector<const Trk::TrackParticleBase*>& tracks )const;
+   virtual std::vector< std::vector<const Trk::TrackParticleBase *> > seeds(const std::vector<const Trk::TrackParticleBase*>& tracks )const override;
 
-   std::vector< std::vector<const Trk::TrackParameters *> > seeds(const std::vector<const xAOD::TrackParticle*>& tracks )const;
+   virtual std::vector< std::vector<const Trk::TrackParameters *> > seeds(const std::vector<const xAOD::TrackParticle*>& tracks )const override;
 
    //std::vector<int> m_z0sort(std::vector<const xAOD::TrackParticle*>& perigeeList,xAOD::Vertex * beamVtx) const;