Bug 295981 [Forms] FormImages & FormFonts are not disposed correctly
bundles/org.eclipse.ui.forms/src/org/eclipse/ui/internal/forms/widgets/FormHeading.java
layout();
		redraw();
	}
	/**
	 * Tests if the form is in the 'busy' state.
	 * 
	 * @return <code>true</code> if busy, <code>false</code> otherwise.
	 */
	public boolean isBusy() {
		return titleRegion.isBusy();
	}
	/**
	 * Sets the form's busy state. Busy form will display 'busy' animation in
	 * the area of the title image.
	 * 
	 * @param busy
	 *            the form's busy state
	 */
	public void setBusy(boolean busy) {
		if (titleRegion.setBusy(busy))
			layout();
	}
	public Control getHeadClient() {
		return headClient;
	}
	public void setHeadClient(Control headClient) {
		if (headClient != null)
			Assert.isTrue(headClient.getParent() == this);
		this.headClient = headClient;
		layout();