Bug 203838 [Markers] [Markers] clicking on column headers does not sort table
I20070918 Clicking on any of the column headers does not sort based on the relevant column.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/provisional/views/markers/CachedMarkerBuilder.java
monitor.done();
				return;
			}
			monitor.subTask(MarkerMessages.MarkerView_queueing_updates);
			if (monitor.isCanceled())
				return;
			if (generator.isShowingHierarchy()) {
				MarkerCategory[] newCategories = buildHierarchy(newMarkers, 0,
						newMarkers.getSize() - 1, 0);
				if (monitor.isCanceled())
					return;
				categories = newCategories;
			}
			currentMap = newMarkers;
			monitor.done();
		} finally {
			building = false;
		}
	}
	/**
	 * Break the marker up into categories
	 * 
	 * @param markers
	 * @param start
	 *            the start index in the markers
	 * @param end
	 *            the last index to check
	 * @param sortIndex -
	 *            the parent of the field
	 * @return MarkerCategory[] or <code>null</code> if we are at the bottom