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/MarkerComparator.java
private MarkerField category;
	private MarkerField[] fields;
	/**
	 * Create a new instance of the receiver categorised by categoryField
	 * 
	 * @param categoryField
	 *            May be <code>null/<code>
	 * @param mainFields in order of compare significance
	 */
	public MarkerComparator(MarkerField categoryField, MarkerField[] mainFields) {
		category = categoryField;
		fields = mainFields;
	}
	/**