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/ConcreteMarker.java
private String description;
    private String resourceName;
    private String inFolder;
    private CollationKey descriptionKey;
    private CollationKey resourceNameKey;
    private int line;
    private long creationTime;
    private String type;
    private IMarker marker;
    /**
     * Cache for the marker ID.
     */
	private long id = -1L;
	private MarkerNode markerCategory;
	private String shortFolder;
	private String subCategory = Util.EMPTY_STRING;
    public ConcreteMarker(IMarker toCopy) {
        marker = toCopy;
        refresh();
    }
    /**