Bug 172606 Error icon in Library Explorer for multi-extends item.[01]
Description: Error icon in Library Explorer for multi-extends item. Build number:2.1.2.v20070202 Steps to reproduce: 1. New a.rptlibrary and b.rptlibrary. 2. New a table in a.rptlibray. 3. Open b.rptlibray and extends table item in a.rptlibray. 4. Open Library Explore, check table item inside b.rptlibrary. Expected result: Normal item icon before table item. Actual result: Error icon indicate the item exists errors. see attached.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/util/UIUtil.java
* @param editParts
	 *            a list of editpart
	 * @return the current selected table editpart, null if no table editpart,
	 *         more than one table, or other non-table editpart. Cell editpart
	 *         is also a type of table editpart.
	 */
	public static TableEditPart getTableEditPart( List editParts )
	{
		if ( editParts == null || editParts.isEmpty( ) )
			return null;
		int size = editParts.size( );
		TableEditPart part = null;
		for ( int i = 0; i < size; i++ )
		{
			Object obj = editParts.get( i );
			TableEditPart currentEditPart = null;
			if ( obj instanceof TableEditPart )
			{
				currentEditPart = (TableEditPart) obj;
			}
			else if ( obj instanceof TableCellEditPart )
			{
				currentEditPart = (TableEditPart) ( (TableCellEditPart) obj ).getParent( );
			}
			else if ( obj instanceof DummyEditpart )
			{
				continue;
			}
			if ( part == null )
			{