Bug 142462 Cannot create bindings for data set output parameters
Define a JDBC Stored Procedure data set with at least one data set output parameter. Bind this data set to a table. Edit data binding for the table and add a new binding. In the expression builder, under "Available Data Sets", only the columns for the data set are shown as available. The output parameters are not shown. This is a regression against 2.0. This bug makes data set parameters unusable.
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DEUtil.java
* 
	 * @param obj
	 */
	public static String getDisplayLabel( Object obj )
	{
		return getDisplayLabel( obj, true );
	}
	/**
	 * Get display label of report element
	 * 
	 * @param obj
	 */
	public static String getDisplayLabel( Object obj, boolean includeElementName )
	{
		if ( obj instanceof DesignElementHandle )
		{
			DesignElementHandle handle = (DesignElementHandle) obj;
			String elementName = handle.getDefn( ).getDisplayName( );
			String displayName;
			if ( handle.getQualifiedName( ) != null
					&& !handle.getQualifiedName( ).equals( handle.getName( ) ) )
			{
				displayName = handle.getQualifiedName( );
			}
			else
			{
				displayName = handle.getDisplayLabel( DesignElementHandle.USER_LABEL );
			}
			if ( !StringUtil.isBlank( displayName ) )
			{