Bug 186940 Style name in theme cannot be identify by auto when reopen the library[01]
Description: Style name in theme cannot be identify by auto when reopen the library[01] Step: 1.Open a library and add a theme 2.New a style on the theme and use the default name that is "NewStyle" 3.Save the library, close it and reopen it again. 4.New another style on the same theme Actual result: The default style name on second times is also "NewStyle" Exception result: The default style name on second times is "NewStyle1"
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ElementFactory.java
ExtendedItemHandle handle = element.handle( module );
		try
		{
			handle.loadExtendedElement( );
		}
		catch ( ExtendedElementException e )
		{
			
			assert false;
		}
		return handle;
	}
	/**
	 * Creates a new script data source.
	 * 
	 * @param name
	 *            the required script data source name.
	 * @return a handle to script data source
	 */
	public ScriptDataSourceHandle newScriptDataSource( String name )
	{
		ScriptDataSource element = new ScriptDataSource( name );
		module.makeUniqueName( element );
		return element.handle( module );
	}
	/**
	 * Creates a new script data set. The name is required. If the
	 * <code>name</code> is null, we will make a unique name for it.
	 * 
	 * @param name