Bug 220662 [Markers] Problems view custom configuration with all types selected does not pick up new types
I20080226-1155 Some plug-ins in my workspace produced the new API problem markers. My Problems view was set to show "All Errors" (On any element, Error, all types selected), but the API problems did not get selected. There must be a way to configure the Problems view to also show all new problem types -- and this should be used in the default "All Errors" configuration.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/MarkerContentGenerator.java
* 
	 * @param matching
	 * @param returnMarkers
	 */
	private void findIntersection(Collection matching, Collection returnMarkers) {
		HashSet removeMarkers = new HashSet();
		Iterator existing = returnMarkers.iterator();
		while (existing.hasNext()) {
			Object next = existing.next();
			if (matching.contains(next))
				continue;
			removeMarkers.add(next);
		}
		returnMarkers.removeAll(removeMarkers);
	}
	/**
	 * Adds all markers in the given set of resources to the given list
	 * 
	 * @param results
	 *            The Collection to add new entries to
	 * @param resources
	 * @param group
	 *            the group to filter on. May be <code>null</code>.
	 * @param depth
	 * @param monitor
	 */
	private void findMarkers(Collection results, IResource[] resources,
			MarkerFieldFilterGroup group, int depth, IProgressMonitor monitor) {
		if (resources == null) {
			return;