Bug 115630 [Markers] New markerSupport features are not dynamic
M3 We need to add suites and test the the category support is dynamic.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerSupportRegistry.java
if (objects[i] instanceof ProblemFilter)
				registeredFilters.remove(objects[i]);
			Collection keysToRemove = new ArrayList();
			if (objects[i] instanceof ISubCategoryProvider) {
				Iterator keys = registeredProviders.keySet().iterator();
				while (keys.hasNext()) {
					String key = (String) keys.next();
					Collection next = (Collection) registeredProviders.get(key);
					if (next.contains(objects[i])) {
						next.remove(objects[i]);
						if (next.isEmpty())
							keysToRemove.add(key);
						break;
					}
				}
			}
		}
	}
	/**
	 * Get the ICategoryProviders associated with marker. Return
	 * <code>null</code> if there are none.
	 * 
	 * @param marker
	 * @return ICategoryProvider[] or <code>null</code>
	 */
	public ISubCategoryProvider[] getCategoryProviders(IMarker marker) {
		Object providers;
		try {
			providers = registeredProviders.get(marker.getType());
		} catch (CoreException e) {