mem leaks in evaluator hint

platform/xdebugger-impl/src/com/intellij/xdebugger/impl/evaluate/quick/XValueHint.java

@@ -28,7 +28,6 @@ import com.intellij.openapi.actionSystem.ShortcutSet;
 import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.editor.Editor;
-import com.intellij.openapi.editor.impl.EditorImpl;
 import com.intellij.openapi.fileEditor.FileDocumentManager;
 import com.intellij.openapi.keymap.KeymapUtil;
 import com.intellij.openapi.project.DumbAwareAction;
@@ -116,7 +115,6 @@ public class XValueHint extends AbstractValueHint {
     boolean result = super.showHint(component);
     if (result && getType() == ValueHintType.MOUSE_OVER_HINT) {
       myDisposable = Disposer.newDisposable();
-      Disposer.register(((EditorImpl)getEditor()).getDisposable(), myDisposable);
       ShortcutSet shortcut = ActionManager.getInstance().getAction("ShowErrorDescription").getShortcutSet();
       new DumbAwareAction() {
         @Override
@@ -130,6 +128,15 @@ public class XValueHint extends AbstractValueHint {
     return result;
   }
 
+  @Override
+  protected void onHintHidden() {
+    super.onHintHidden();
+    if (myDisposable != null) {
+      Disposer.dispose(myDisposable);
+      myDisposable = null;
+    }
+  }
+
   @Override
   public void hideHint() {
     super.hideHint();

platform/xdebugger-impl/src/com/intellij/xdebugger/impl/evaluate/quick/common/AbstractValueHint.java

@@ -194,6 +194,7 @@ public abstract class AbstractValueHint {
         if (myHideRunnable != null) {
           myHideRunnable.run();
         }
+        onHintHidden();
       }
     });
 
@@ -211,6 +212,10 @@ public abstract class AbstractValueHint {
     return true;
   }
 
+  protected void onHintHidden() {
+
+  }
+
   protected boolean isHintHidden() {
     return myHintHidden;
   }