Bug 16897 No busy indicator while populating type hierarchy
Build: Freeze 1 In a self-hosting workspace, select the type IAdaptable in an editor and hit F4 to populate the type hiearchy. Since this interface has many sub-types, this takes several seconds to populate. There should be a busy indicator while this is happening.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java
if (methodViewerNeedsUpdate) {
				updateMethodViewer(fSelectedType);
			}
			fDialogSettings.put(DIALOGSTORE_VIEWORIENTATION, orientation);
		}
	}
	
		
	private void updateMainToolbar(int orientation) {
		IActionBars actionBars= getViewSite().getActionBars();
		IToolBarManager tbmanager= actionBars.getToolBarManager();	
				
		if (orientation == VIEW_ORIENTATION_HORIZONTAL) {
			clearMainToolBar(tbmanager);
			ToolBar typeViewerToolBar= new ToolBar(fTypeViewerViewForm, SWT.FLAT | SWT.WRAP);
			fillMainToolBar(new ToolBarManager(typeViewerToolBar));
			fTypeViewerViewForm.setTopLeft(typeViewerToolBar);
		} else {
			fTypeViewerViewForm.setTopLeft(null);
			fillMainToolBar(tbmanager);
		}
	}
	
	private void fillMainToolBar(IToolBarManager tbmanager) {
		tbmanager.removeAll();
		tbmanager.add(fHistoryDropDownAction);
		for (int i= 0; i < fViewActions.length; i++) {
			tbmanager.add(fViewActions[i]);
		}
		tbmanager.update(false);