Bug 36456 Type heirarchy show final class icon only on double click [type hierarchy]
When opening a type heirarchy, the icons for the heirarchy do not show final classes (ie. the little 'F' in the icon). When the icon is double clicked to open the class, the icon changes.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java
fEnableMemberFilterAction.setChecked(on);
	}
	
	/**
	 * called from ShowQualifiedTypeNamesAction. Must be called after creation
	 * of the viewpart.
	 */	
	public void showQualifiedTypeNames(boolean on) {
		if (fAllViewers == null) {
			return;
		}
		for (int i= 0; i < fAllViewers.length; i++) {
			fAllViewers[i].setQualifiedTypeName(on);
		}
	}
	
	private boolean isShowQualifiedTypeNames() {
		return fShowQualifiedTypeNamesAction.isChecked();
	}
	
	/**
	 * Called from ITypeHierarchyLifeCycleListener.
	 * Can be called from any thread
	 */
	protected void doTypeHierarchyChanged(final TypeHierarchyLifeCycle typeHierarchy, final IType[] changedTypes) {
		if (!fIsVisible) {
			fNeedRefresh= true;
			return;
		}
		if (fIsRefreshRunnablePosted) {