Bug 172814 [Viewers] Rename AbstractViewerEditor to ColumnViewerEditor
There is no "AbstractViewer", and this class is referenced from ColumnViewer. To make the names more consistent, it should be called ColumnViewerEditor, not AbstractViewerEditor.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTreeViewer.java
TreePath parentPath = internalGetSorterParentPath(widget, comparator);
		Item[] items = getChildren(widget);
		
		
		int lastInsertion = 0;
		
		if (items.length == 0) {
			for (int i = 0; i < elements.length; i++) {
				createTreeItem(widget, elements[i], -1);
			}
			return;
		}
		for (int i = 0; i < elements.length; i++) {
			boolean newItem = true;
			Object element = elements[i];
			int index;
			if (comparator == null) {
				if (itemExists(items, element)) {
					refresh(element);
					newItem = false;
				}
				index = -1;
			} else {
				lastInsertion = insertionPosition(items, comparator,
						lastInsertion, element, parentPath);
				
				
				if (lastInsertion == items.length) {
					index = -1;
				} else {