Bug 82743 [Markers] improved problem filter needed (OR clauses)
when working with large workspaces I find the current problems filter not powerful enough. If I were able to AND and OR the conditions available from the UI then I would solve all my use cases. my most needed one is : I would like to see ERRORS anywhere in the workspace OR WARNINGS in the current selected project
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerFilter.java
* <b>Warning:</b> for internal package use only.  Return the root
     * marker types.
     * 
     * @return the root marker types.
     */
    public List getRootTypes() {
        return rootTypes;
    }
    /**
     * <b>Warning:</b> for internal package use only.  Return the
     * selected types.
     * 
     * @return the selected marker types to be displayed.
     */
    public List getSelectedTypes() {
        return selectedTypes;
    }
        
    /**
     * <b>Warning:</b> for internal private use only. Test based on the
     * types model.
     *  
     * @param id the ID for a marker type
     * @return the type for this id
     */
    public MarkerType getMarkerType(String id) {
    	return typesModel.getType(id);
    }
    /**
     * @return the current working set or <code>null</code> if no working set is defined.