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/AbstractTreeViewer.java
if (items[lastInsertion].getData().equals(element)) {
							
							refresh(element);
							newItem = false;
						}
						lastInsertion++;
					}
					
					if (lastInsertion == items.length) {
						index = -1;
					} else {
						index = lastInsertion + i; 
													
					}
				}
			}
			if (newItem) {
				createTreeItem(widget, element, index);
			}
		}
	}
	/**
	 * See if element is the data of one of the elements in items.
	 * 
	 * @param items
	 * @param element
	 * @return <code>true</code> if the element matches.
	 */