Bug 110998 [Problems] Remove the working set selection and switch to using global working sets
M2 We need to remove the working sets option in the filter and switch to using the current list of working sets. We should move this to a preference that says only "Use Working Sets"
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerFilter.java
private boolean isEnclosed(IResource element) {
		if (workingSet == null) {
			return false;
		}
		Set workingSetPaths = getWorkingSetAsSetOfPaths();
		return workingSetPaths.contains(element.getFullPath().toString());
	}
	/**
	 * <ul>
	 * <li><code>MarkerFilter.ON_ANY</code> if showing items
	 * associated with any resource.</li>
	 * <li><code>MarkerFilter.ON_SELECTED_ONLY</code> if showing
	 * items associated with the selected resource within the workbench.</li>
	 * <li><code>MarkerFilter.ON_SELECTED_AND_CHILDREN</code> if
	 * showing items associated with the selected resource within the workbench
	 * and its children.</li>
	 * <li><code>MarkerFilter.ON_ANY_OF_SAME_PROJECT</code> if
	 * showing items in the same project as the selected resource within the
	 * workbench.</li>
	 * <li><code>MarkerFilter.ON_WORKING_SET</code> if showing items in some
	 * working set.</li>
	 * </ul>
	 */
	public int getOnResource() {
		return onResource;
	}
	/**
	 * Sets the type of filtering by selection.
	 * 
	 * @param onResource