Bug 188038 Need know which measure ComputedColumnHandle aggregate on.
GUI need to show the measure name ont the data item in the aggregation cell.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/olap/util/OlapExpressionCompiler.java
|| n.getFirstChild( ).getType( ) != Token.EXPR_RESULT )
					return;
				if ( n.getFirstChild( ).getFirstChild( ) == null
						||( n.getFirstChild( ).getFirstChild( ).getType( ) != Token.GETPROP
						&& n.getFirstChild( ).getFirstChild( ).getType( ) != Token.GETELEM ))
					return;
			}
		}
		if ( n.getFirstChild( ) != null
				&& ( n.getType( ) == Token.GETPROP || n.getType( ) == Token.GETELEM )
				&& n.getFirstChild( ).getType( ) == Token.NAME )
		{
			if ( "dimension".equals( n.getFirstChild( ).getString( ) ) )
			{
				if ( n.getLastChild( ) != null && n.getNext( ) != null )
				{
					String dimName = n.getLastChild( ).getString( );
					String levelName = n.getNext( ).getString( );
					DimLevel dimLevel = new DimLevel( dimName, levelName );
					if ( !result.contains( dimLevel ) )
						result.add( dimLevel );
				}
			}
			else if ( "data".equals( n.getFirstChild( ).getString( ) ) )
			{
				if ( n.getLastChild( ) != null )
				{
					String bindingName = n.getLastChild( ).getString( );
					IBinding binding = getBinding( bindings, bindingName );
					if ( binding != null )