Bug 119599 [Dialogs] Every PopupDialiog is leaked if PopupDialolg.HOVER_SHELLSTYLE or SWT.ON_TOP is set
I20051206-1200 Every PopupDialiog is leaked if PopupDialolg.HOVER_SHELLSTYLE or SWT.ON_TOP is set. Reason: a deactivate listener is added to the popup shell's parent but is never removed.
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/PopupDialog.java
* @see PopupDialog#hasInfoArea()
	 * @see PopupDialog#createTitleControl(Composite)
	 */
	protected Control createInfoTextArea(Composite parent) {
		
		infoLabel = new Label(parent, SWT.RIGHT);
		infoLabel.setText(infoText);
		Font font = infoLabel.getFont();
		FontData[] fontDatas = font.getFontData();
		for (int i = 0; i < fontDatas.length; i++)
			fontDatas[i].setHeight(fontDatas[i].getHeight() * 9 / 10);
		infoFont = new Font(infoLabel.getDisplay(), fontDatas);
		infoLabel.setFont(infoFont);
		GridData gd = new GridData(GridData.FILL_HORIZONTAL
				| GridData.HORIZONTAL_ALIGN_BEGINNING
				| GridData.VERTICAL_ALIGN_BEGINNING);
		infoLabel.setLayoutData(gd);
		infoLabel.setForeground(parent.getDisplay().getSystemColor(
				SWT.COLOR_WIDGET_DARK_SHADOW));
		return infoLabel;
	}
	/**
	 * Create a horizontal separator for the given parent.
	 * 
	 * @param parent
	 *            The parent composite.
	 * @return The Control representing the horizontal separator.
	 */
	private Control createHorizontalSeparator(Composite parent) {
		Label separator = new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL