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
*/
    IWorkingSet getWorkingSet() {
        return workingSet;
    }
    /**
     * Sets the enablement state of the filter.
     */
    void setEnabled(boolean enabled) {
        this.enabled = enabled;
    }
    /**
     * Sets the enablement state of filtering by marker limit.
     */
    void setFilterOnMarkerLimit(boolean filterOnMarkerLimit) {
        this.filterOnMarkerLimit = filterOnMarkerLimit;
    }
    /**
     * Sets the selected marker types to be displayed. The List <b>MUST ONLY</b> contain 
     * <code>MarkerType</code> objects.
     */
    void setSelectedTypes(List selectedTypes) {
        this.selectedTypes = selectedTypes;
    }
    /**
     * Sets the current working set.
     */
    void setWorkingSet(IWorkingSet workingSet) {
        this.workingSet = workingSet;
        cachedWorkingSet = null;
    }