Use recommended method instead of deprecated

ProjectLevelVcsManager#add/removeVcsListener has been deprecated for
a long time, but some usages were still not updated.

platform/vcs-api/src/com/intellij/openapi/vcs/ProjectLevelVcsManager.java

@@ -198,6 +198,7 @@ public abstract class ProjectLevelVcsManager {
    * @deprecated use {@link #VCS_CONFIGURATION_CHANGED} instead
    * @since 6.0
    */
+  @Deprecated
   public abstract void addVcsListener(VcsListener listener);
 
   /**
@@ -207,6 +208,7 @@ public abstract class ProjectLevelVcsManager {
    * @deprecated use {@link #VCS_CONFIGURATION_CHANGED} instead
    * @since 6.0
    */
+  @Deprecated
   public abstract void removeVcsListener(VcsListener listener);
 
   /**

platform/vcs-api/src/com/intellij/openapi/vcs/VcsListener.java

@@ -25,9 +25,9 @@ package com.intellij.openapi.vcs;
 import java.util.EventListener;
 
 /**
- * Allows to receive notifications about changes in VCS configuration for the project.
+ * <p>Allows to receive notifications about changes in VCS configuration for the project.</p>
+ * <p>Use the {@link ProjectLevelVcsManager#VCS_CONFIGURATION_CHANGED} MessageBus topic to subscribe.</p>
  *
- * @see ProjectLevelVcsManager#addVcsListener
  * @since 6.0
  */
 public interface VcsListener extends EventListener {

platform/vcs-impl/src/com/intellij/openapi/vcs/changes/ChangeListManagerImpl.java

@@ -63,6 +63,8 @@ import java.util.*;
 import java.util.concurrent.*;
 import java.util.concurrent.atomic.AtomicReference;
 
+import static com.intellij.openapi.vcs.ProjectLevelVcsManager.*;
+
 @State(name = "ChangeListManager", storages = @Storage(StoragePathMacros.WORKSPACE_FILE))
 public class ChangeListManagerImpl extends ChangeListManagerEx implements ProjectComponent, ChangeListOwner, PersistentStateComponent<Element> {
   public static final Logger LOG = Logger.getInstance("#com.intellij.openapi.vcs.changes.ChangeListManagerImpl");
@@ -246,14 +248,14 @@ public class ChangeListManagerImpl extends ChangeListManagerEx implements Projec
     final ProjectLevelVcsManager vcsManager = ProjectLevelVcsManager.getInstance(myProject);
     if (ApplicationManager.getApplication().isUnitTestMode()) {
       myUpdater.initialized();
-      vcsManager.addVcsListener(myVcsListener);
+      myProject.getMessageBus().connect().subscribe(VCS_CONFIGURATION_CHANGED, myVcsListener);
     }
     else {
       ((ProjectLevelVcsManagerImpl)vcsManager).addInitializationRequest(
         VcsInitObject.CHANGE_LIST_MANAGER, (DumbAwareRunnable)() -> {
           myUpdater.initialized();
           broadcastStateAfterLoad();
-          vcsManager.addVcsListener(myVcsListener);
+          myProject.getMessageBus().connect().subscribe(VCS_CONFIGURATION_CHANGED, myVcsListener);
         });
 
       myConflictTracker.startTracking();
@@ -307,8 +309,6 @@ public class ChangeListManagerImpl extends ChangeListManagerEx implements Projec
 
   @Override
   public void projectClosed() {
-    ProjectLevelVcsManager.getInstance(myProject).removeVcsListener(myVcsListener);
-
     synchronized (myDataLock) {
       myUpdateChangesProgressIndicator.cancel();
     }

platform/vcs-impl/src/com/intellij/openapi/vcs/changes/committed/CommittedChangesViewManager.java

@@ -87,8 +87,8 @@ public class CommittedChangesViewManager implements ChangesViewContentProvider {
   }
 
   public JComponent initContent() {
-    myVcsManager.addVcsListener(myVcsListener);
     myConnection = myBus.connect();
+    myConnection.subscribe(ProjectLevelVcsManager.VCS_CONFIGURATION_CHANGED, myVcsListener);
     myConnection.subscribe(CommittedChangesCache.COMMITTED_TOPIC, new MyCommittedChangesListener());
     updateChangesContent();
     myComponent.refreshChanges(true);
@@ -96,7 +96,6 @@ public class CommittedChangesViewManager implements ChangesViewContentProvider {
   }
 
   public void disposeContent() {
-    myVcsManager.removeVcsListener(myVcsListener);
     myConnection.disconnect();
     Disposer.dispose(myComponent);
     myComponent = null;

plugins/svn4idea/src/org/jetbrains/idea/svn/history/MergeInfoUpdatesListener.java

@@ -18,7 +18,6 @@ package org.jetbrains.idea.svn.history;
 import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.ZipperUpdater;
-import com.intellij.openapi.vcs.ProjectLevelVcsManager;
 import com.intellij.openapi.vcs.VcsListener;
 import com.intellij.openapi.vcs.changes.committed.CommittedChangesTreeBrowser;
 import com.intellij.openapi.vcs.changes.committed.VcsConfigurationChangeListener;
@@ -34,6 +33,8 @@ import org.jetbrains.idea.svn.mergeinfo.SvnMergeInfoCache;
 import java.util.ArrayList;
 import java.util.List;
 
+import static com.intellij.openapi.vcs.ProjectLevelVcsManager.VCS_CONFIGURATION_CHANGED;
+
 public class MergeInfoUpdatesListener {
   private final static int DELAY = 300;
 
@@ -77,7 +78,7 @@ public class MergeInfoUpdatesListener {
 
       myConnection.subscribe(SvnVcs.ROOTS_RELOADED, reloadConsumer);
 
-      ProjectLevelVcsManager.getInstance(myProject).addVcsListener(new VcsListener() {
+      myConnection.subscribe(VCS_CONFIGURATION_CHANGED, new VcsListener() {
         public void directoryMappingChanged() {
           callReloadMergeInfo();
         }