Bug 129812 [Markers] Enabling problem categorization per default
Build 3.2M5 Recent progress on problem categorization should be made more proeminent by enabling categorization by default. Similar to search view doing hierarchical presentation by default nowadays.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerView.java
.getControl());
				PlatformUI.getWorkbench().getHelpSystem().displayHelp(context);
			}
		});
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
	 */
	public Object getAdapter(Class adaptable) {
		if (adaptable.equals(IContextProvider.class)) {
			return contextProvider;
		}
		if (adaptable.equals(IShowInSource.class)) {
			return new IShowInSource() {
				public ShowInContext getShowInContext() {
					ISelection selection = getViewer().getSelection();
					if (!(selection instanceof IStructuredSelection)) {
						return null;
					}
					IStructuredSelection structured = (IStructuredSelection) selection;
					Iterator markerIterator = structured.iterator();
					List newSelection = new ArrayList();
					while (markerIterator.hasNext()) {
						ConcreteMarker element = (ConcreteMarker) markerIterator
								.next();
						newSelection.add(element.getResource());
					}
					return new ShowInContext(getViewer().getInput(),