Bug 121498 When datasource/dataset deleted, the datasource/dataset property binding element haven't been deleted
When deleted the datasource/dataset, the datasource/dataset property binding element haven't been deleted. Expected result: This operation must be a transaction.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/Module.java
* "MyName4".</dd>
	 * </dl>
	 * 
	 * @param element
	 *            element for which to create a unique name
	 */
	public void makeUniqueName( DesignElement element )
	{
		nameManager.makeUniqueName( element );
	}
	/**
	 * Returns the file name of the module file.
	 * 
	 * @return the module file name. Returns null if the module has not yet been
	 *         saved to a file.
	 */
	public String getFileName( )
	{
		return fileName;
	}
	/**
	 * Sets the module file name. This method is only called by module reader,
	 * it's illegal to be called for other purpose.
	 * 
	 * @param newName
	 *            the new file name. It may contain relative/absolute path
	 *            information. But this name must include the file name with the
	 *            filename extension.
	 */
	public void setFileName( String newName )