Bug 214137 [Markers] Unbound system filters should be bound to problems view.
In 3.3 we supported systemFilters which are not currently picked up by the problems view. We should pick these up for compatiblity.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/CachedMarkerBuilder.java
* this view.
			 * 
			 * @param event
			 *            the resource change event
			 * @return <code>true</code> if the event contains at least one
			 *         relevant marker delta
			 * @since 3.3
			 */
			private boolean hasMarkerDelta(IResourceChangeEvent event) {
				Iterator markerTypes = generator.getMarkerTypes().iterator();
				while (markerTypes.hasNext()) {
					MarkerType type = (MarkerType) markerTypes.next();
					if (event.findMarkerDeltas(type.getId(), true).length > 0)
						return true;
				}
				return false;
			}
			/*
			 * (non-Javadoc)
			 * 
			 * @see org.eclipse.core.resources.IResourceChangeListener#resourceChanged(org.eclipse.core.resources.IResourceChangeEvent)
			 */
			public void resourceChanged(IResourceChangeEvent event) {
				if (!hasMarkerDelta(event))
					return;
				if (event.getType() == IResourceChangeEvent.PRE_BUILD) {
					preBuild();
					return;
				}
				if (event.getType() == IResourceChangeEvent.POST_BUILD) {