optimization to make 'select all' available for tree tables: merge select events as they were in table

platform/platform-api/src/com/intellij/ui/treeStructure/treetable/TreeTable.java

@@ -28,8 +28,10 @@ import java.awt.event.KeyEvent;
 import java.awt.event.MouseEvent;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
+import java.util.ArrayList;
 import java.util.EventObject;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Set;
 
 /**
@@ -283,15 +285,19 @@ public class TreeTable extends JBTable {
 
           clearSelection();
           if (min != -1 && max != -1) {
+            List<TreePath> selectionPaths = new ArrayList<TreePath>();
             for (int counter = min; counter <= max; counter++) {
               if (listSelectionModel.isSelectedIndex(counter)) {
                 TreePath selPath = myTree.getPathForRow(counter);
 
                 if (selPath != null) {
-                  addSelectionPath(selPath);
+                  selectionPaths.add(selPath);
                 }
               }
             }
+            if (!selectionPaths.isEmpty()) {
+              addSelectionPaths(selectionPaths.toArray(new TreePath[selectionPaths.size()]));
+            }
           }
         }
         finally {