Bug 157495 [Viewers] public subclasses of ViewerSorter should be changed to ViewerComparator
The following 3 classes in the ui should be changed to be subclasses of ViewerComparator: ResourceSorter WorkbenchViewerSorter FileViewerSorter This will involve deprecating old classes and methods, and adding new classes and methods for each of these classes and to classes that reference these sorter classes in their API.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/navigator/IResourceNavigator.java
/**
     * Returns the pattern filter.
     *
     * @return the pattern filter
     */
    ResourcePatternFilter getPatternFilter();
    /**
     * Returns the active working set, or <code>null<code> if none.
     *
     * @return the active working set, or <code>null<code> if none
     * @since 2.0
     */
    IWorkingSet getWorkingSet();
    /**
     * Returns the current sorter.
     */
    ResourceSorter getSorter();
    /**
     * Sets the current sorter.
     */
    void setSorter(ResourceSorter sorter);
    /**
     * Sets the values of the filter preference to be the 
     * strings in preference values
     */
    void setFiltersPreference(String[] patterns);
    /**