Bug 215985 [Markers] Description column not sorting text
Currently the description column in the problems view is sorting by severity but not comparing Strings of equal severity.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/CachedMarkerBuilder.java
}
	/**
	 * Schedule an update of the markers with a delay.
	 * 
	 */
	void scheduleMarkerUpdate() {
		cancelJobs();
		currentMap = null;
		building = true;
		progressService.schedule(markerProcessJob, SHORT_DELAY);
	}
	/**
	 * Set whether the filters are being ANDed or ORed.
	 * 
	 * @param and
	 */
	void setAndFilters(boolean and) {
		andFilters = and;
	}
	/**
	 * Set the category group.
	 * 
	 * @param group
	 *            {@link MarkerGroup} or <code>null</code>.
	 */
	void setCategoryGroup(MarkerGroup group) {
		this.categoryGroup = group;
		comparator = null;
		scheduleMarkerUpdate();
	}