Bug 181061 [Viewers] JFace viewers performance issues in 3.3
A number of the JFace performance tests are red since I20060926-0800.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/ViewerCell.java
*/
	public Widget getItem() {
		return row.getItem();
	}
	/**
	 * Get the control for this cell.
	 * 
	 * @return {@link Control}
	 */
	public Control getControl() {
		return row.getControl();
	}
	/**
	 * Returns the specified neighbor of this cell, or <code>null</code> if no
	 * neighbor exists in the given direction. Direction constants can be
	 * combined by bitwise OR; for example, this method will return the cell to
	 * the upper-left of the current cell by passing {@link #ABOVE} |
	 * {@link #LEFT}. If <code>sameLevel</code> is <code>true</code>, only
	 * cells in sibling rows (under the same parent) will be considered.
	 * 
	 * @param directionMask
	 *            the direction mask used to identify the requested neighbor
	 *            cell
	 * @param sameLevel
	 *            if <code>true</code>, only consider cells from sibling rows
	 * @return the requested neighbor cell, or <code>null</code> if not found
	 */
	public ViewerCell getNeighbor(int directionMask, boolean sameLevel) {
		ViewerRow row;
		int columnIndex;