Bug 174701 [Viewers] ViewerRow should be reused instead of connected to the Item
Currently we create a ViewerRow ver every Item we create this can degrade performance, we should cache the row and reuse it
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTableViewer.java
/**
		 * Add the listener for SetData on the table
		 */
		private void addTableListener() {
			getControl().addListener(SWT.SetData, new Listener() {
				/*
				 * (non-Javadoc)
				 * 
				 * @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)
				 */
				public void handleEvent(Event event) {
					Item item = (Item) event.item;
					final int index = doIndexOf(item);
					Object element = resolveElement(index);
					if (element == null) {
						
						
						IContentProvider contentProvider = getContentProvider();
						
						if (contentProvider instanceof ILazyContentProvider) {
							((ILazyContentProvider) contentProvider)
									.updateElement(index);
							return;
						}
					}
					associate(element, item);
					updateItem(item, element);
				}
			});
		}