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/DescriptionFieldFilter.java
/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.internal.provisional.views.markers.api.MarkerFieldFilter#loadSettings(org.eclipse.ui.IMemento)
	 */
	public void loadSettings(IMemento memento) {
		String modifier = memento.getString(TAG_CONTAINS_MODIFIER);
		if (modifier == null)
			return;
		String contains = memento.getString(TAG_CONTAINS_TEXT);
		if (contains == null)
			return;
		containsText = contains;
		containsModifier = modifier;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.internal.provisional.views.markers.CompatibilityFieldFilter#loadLegacySettings(org.eclipse.ui.IMemento)
	 */
	public void loadLegacySettings(IMemento memento) {
		String setting = memento.getString(ProblemFilter.TAG_CONTAINS);
		if (setting != null) {
			containsModifier = Boolean.valueOf(setting).booleanValue() ? MarkerSupportConstants.CONTAINS_KEY
					: MarkerSupportConstants.DOES_NOT_CONTAIN_KEY;
		}
		setting = memento.getString(ProblemFilter.TAG_DESCRIPTION);
		if (setting != null) {
			containsText = new String(setting);
		}