Bug 135790 ClassCastException in RowData.
ClassCastException is thrown in RowData line 81(IBaseExpression expr = ( IBaseExpression ) valueExpressions.get( index - 1 );).
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/parser/EngineIRVisitor.java
if ( modelOpr.equals( DesignChoiceConstants.FILTER_OPERATOR_NOT_NULL ) )
			return IConditionalExpression.OP_NOT_NULL;
		if ( modelOpr.equals( DesignChoiceConstants.FILTER_OPERATOR_TRUE ) )
			return IConditionalExpression.OP_TRUE;
		if ( modelOpr.equals( DesignChoiceConstants.FILTER_OPERATOR_FALSE ) )
			return IConditionalExpression.OP_FALSE;
		if ( modelOpr.equals( DesignChoiceConstants.FILTER_OPERATOR_LIKE ) )
			return IConditionalExpression.OP_LIKE;
		if ( modelOpr.equals( DesignChoiceConstants.FILTER_OPERATOR_TOP_N ) )
			return IConditionalExpression.OP_TOP_N;
		if ( modelOpr.equals( DesignChoiceConstants.FILTER_OPERATOR_BOTTOM_N ) )
			return IConditionalExpression.OP_BOTTOM_N;
		if ( modelOpr
				.equals( DesignChoiceConstants.FILTER_OPERATOR_TOP_PERCENT ) )
			return IConditionalExpression.OP_TOP_PERCENT;
		if ( modelOpr
				.equals( DesignChoiceConstants.FILTER_OPERATOR_BOTTOM_PERCENT ) )
			return IConditionalExpression.OP_BOTTOM_PERCENT;
		
		if ( modelOpr.equals( DesignChoiceConstants.FILTER_OPERATOR_NOT_LIKE ))
			return IConditionalExpression.OP_NOT_LIKE;
		if ( modelOpr.equals( DesignChoiceConstants.FILTER_OPERATOR_NOT_MATCH ))
			return IConditionalExpression.OP_NOT_MATCH;
		
		/*	if ( modelOpr.equals( DesignChoiceConstants.FILTER_OPERATOR_ANY ) )
			return IConditionalExpression.OP_ANY;*/
		return IConditionalExpression.OP_NONE;
	}
	protected void addReportDefaultPropertyValue( String name,
			StyleHandle handle )