Bug 223962 [Markers] Problems view, new view: Labels
I20080325-0100 - In the problems view choose 'New Problems View' from the view menu - The dialog that shows up should Have a title that matches the action that invoked it, using title capitalization. 'New Problems View' Have a description text with colon ':' and mnemonic. It should probably also forbid the empty name for a view?
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/ExtendedMarkersView.java
*/
	void toggleFilter(MarkerFieldFilterGroup group) {
		builder.toggleFilter(group);
	}
	/**
	 * Toggle the sort direction of the primary field
	 */
	void toggleSortDirection() {
		setPrimarySortField(builder.getPrimarySortField());
	}
	/**
	 * Update the direction indicator as column is now the primary column.
	 * 
	 * @param column
	 * @field {@link MarkerField}
	 */
	void updateDirectionIndicator(TreeColumn column, MarkerField field) {
		viewer.getTree().setSortColumn(column);
		if (builder.getSortDirection(field) == MarkerComparator.ASCENDING)
			viewer.getTree().setSortDirection(SWT.UP);
		else
			viewer.getTree().setSortDirection(SWT.DOWN);
	}
	/**
	 * Update the status line with the new selection
	 * 
	 * @param newSelection
	 */
	private void updateStatusLine(IStructuredSelection newSelection) {
		String message;