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.ui/src/org/eclipse/birt/report/designer/internal/ui/util/DataUtil.java
DataSetHandle dataSet, boolean useColumnHints, boolean useFilters )
			throws BirtException
	{
		return getPreparedQuery( engine,
				dataSet,
				null,
				useColumnHints,
				useFilters );
	}
	/**
	 * Gets prepared query, given Data set, Parameter binding, and
	 * useColumnHints, useFilters information.
	 * 
	 * @param dataSet
	 *            Given DataSet providing SQL query and parameters.
	 * @param bindingParams
	 *            Given Parameter bindings providing binded parameters, null if
	 *            no binded parameters.
	 * @param useColumnHints
	 *            Using column hints flag.
	 * @param useFilters
	 *            Using filters flag.
	 * @return IPreparedQeury
	 * @throws BirtException
	 */
	public static final IPreparedQuery getPreparedQuery( DataEngine engine,
			DataSetHandle dataSet, ParamBindingHandle[] bindingParams,
			boolean useColumnHints, boolean useFilters ) throws BirtException
	{
		IBaseDataSetDesign dataSetDesign = getDataSetDesign( engine,