Bug 136045 the display name does not work
Description: the display name does not work Steps to reproduce: 1. new a datasource and a dataset 2. In the window 'Edit dataset'. click the tab 'Output columns' 3. set a display name on a column Actual result: The display name does not work, however, it is still the column name
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dnd/InsertInLayoutUtil.java
DesignElementHandle tableContainer = firstCell.getContainer( )
					.getContainer( );
			if ( tableContainer instanceof TableHandle )
			{
				return (TableHandle) tableContainer;
			}
			return (TableHandle) tableContainer.getContainer( );
		}
		/**
		 * Returns the index of the focus element in the items
		 */
		public int getFocusIndex( )
		{
			return focusIndex;
		}
		/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.birt.report.designer.internal.ui.dnd.InsertInLayoutUtil.InsertInLayoutRule#insert()
		 */
		public void insert( Object object ) throws SemanticException
		{
			
		}
	}
	/**
	 * 
	 * Rule for setting key when inserting data set column to group handle
	 */
	static class GroupKeySetRule implements InsertInLayoutRule