Bug 165897 [Salesforce Project]Table column lost its data when insert a new column to the right
Reproduce steps: 1. Get and install BIRT Salesforce ODA driver. 2. Download the attached BIRT report design. 3. Insert a new column to the right of Negotiation/Review. 4. Input name as "Month Grand Total" and expression as following: row["Prospecting"]+row["Qualification"]+row["NeedsAnalysis"]+row["ValueProposition"]+row["IdDecisionMakers"]+row["PerceptionAnalysis"]+row["ProposalPriceQuote"]+row["NegotiationReview"] 5. Run the report and Negotiation/Review column lost its data.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/expression/ExpressionProcessor.java
*/
	public ExpressionProcessor( DataSetRuntime dataSet )
	{
		this.dataset = dataSet;
		availabeAggrList = new ArrayList( );
	}
	/**
	 * 
	 * @param computedColumns
	 * @param rsPopulator
	 * @param dataSetRuntime
	 * @throws DataException
	 */
	public void evaluateMultiPassExprOnCmp( IComputedColumnsState iccState,
			boolean useResultSetMeta ) throws DataException
	{
		assert ( iccState != null );
		Context context = Context.enter( );
		try
		{
			int exprType = COMPUTED_COLUMN_EXPR;
			int currentGroupLevel = 0;
			ExpressionInfo exprInfo;
			MultiPassExpressionCompiler helper = new MultiPassExpressionCompiler( rsPopulator,
					baseQuery,
					dataset.getScriptScope( ),
					availabeAggrList );
			helper.setDataSetMode( isDataSetMode );
			for ( int i = 0; i < iccState.getCount( ); i++ )
			{