Bug 118780 Set alias for columns in data set but in expression builder still shows the old columns name when select the dataset.
Description: Set alias for columns in data set but in expression builder still shows the old columns name when select the dataset. Steps to reproduce: 1. New a datasource and a dataset 2. Set alias of the first column in the dataset to "column1". 3. Insert a data item and bind it to dataset. 4. In the expression builder, select the dataset and double click the first column name. Expected result: According to scr #78193 in tracker, the first column in expression build should use alias name instead of original name. Actual result: The original name of the first column was listed in the below of expression builder but the alias name appeared above as row["column1"] after double click the original name.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ExpressionProvider.java
*/
	public void addFilter( ExpressionFilter filter )
	{
		if ( filterList == null )
		{
			filterList = new ArrayList( );
		}
		if ( !filterList.contains( filter ) )
		{
			filterList.add( filter );
		}
	}
	/**
	 * Adds a filter list for this expression builder.
	 * 
	 * @param list
	 *            the list of the filter to add
	 */
	public void addFilterList( List list )
	{
		
		if ( list == null )
		{
			return;
		}
		for ( Iterator iter = list.iterator( ); iter.hasNext( ); )
		{
			Object obj = iter.next( );
			if ( obj instanceof ExpressionFilter )
			{