don't change over image when going through separators

platform/lang-impl/src/com/intellij/execution/ui/layout/impl/GridCellImpl.java

@@ -24,6 +24,7 @@ import com.intellij.openapi.ui.popup.JBPopup;
 import com.intellij.openapi.util.ActionCallback;
 import com.intellij.openapi.util.DimensionService;
 import com.intellij.openapi.util.MutualMap;
+import com.intellij.ui.awt.RelativePoint;
 import com.intellij.ui.components.panels.NonOpaquePanel;
 import com.intellij.ui.content.Content;
 import com.intellij.ui.docking.DockContainer;
@@ -77,6 +78,21 @@ public class GridCellImpl implements GridCell {
       protected Color getFocusedBottomFillColor() {
         return new Color(194, 203, 219);
       }
+
+      @Override
+      public void processDropOver(TabInfo over, RelativePoint point) {
+        ((RunnerContentUi)myContext).myTabs.processDropOver(over, point);
+      }
+
+      @Override
+      public Image startDropOver(TabInfo tabInfo, RelativePoint point) {
+        return ((RunnerContentUi)myContext).myTabs.startDropOver(tabInfo, point);
+      }
+
+      @Override
+      public void resetDropOver(TabInfo tabInfo) {
+        ((RunnerContentUi)myContext).myTabs.resetDropOver(tabInfo);
+      }
     }.setDataProvider(new DataProvider() {
       @Nullable
       public Object getData(@NonNls final String dataId) {

platform/lang-impl/src/com/intellij/execution/ui/layout/impl/RunnerContentUi.java

@@ -509,7 +509,7 @@ public class RunnerContentUi implements ContentUI, Disposable, CellTransform.Fac
       final Point p = point.getPoint(getComponent());
       Component c = SwingUtilities.getDeepestComponentAt(getComponent(), p.x, p.y);
       while (c != null) {
-        if (c instanceof JBTabs) {
+        if (c instanceof JBRunnerTabs) {
           return (JBTabs)c;
         }
         c = c.getParent();