Bug 36511 call hierarchy: details list should be a table with icons
details list should be a table with icons - we can reuse the icons used by 'find in file'
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/callhierarchy/SearchScopeActionGroup.java
IWorkingSet[] sets = workingSetManager.getRecentWorkingSets();
        for (int i = 0; i < sets.length; i++) {
            SearchScopeWorkingSetAction workingSetAction = new SearchScopeWorkingSetAction(sets[i]);
            if (sets[i].getName().equals(fSelectedWorkingSetName)) {
                workingSetAction.setChecked(true);
            }
            actions.add(workingSetAction);
        }
        return (Action[]) actions.toArray(new Action[actions.size()]);
    }
    private void addAction(List actions, Action action) {
        if (action == fSelectedAction) {
            action.setChecked(true);
        } else {
            action.setChecked(false);
        }
        actions.add(action);
    }
    /**
     * @param view
     */
    private void createActions() {
        fSearchScopeWorkspaceAction = new SearchScopeWorkspaceAction();
        fSelectWorkingSetAction = new SelectWorkingSetAction();
        fSearchScopeHierarchyAction = new SearchScopeHierarchyAction();
        fSearchScopeProjectAction = new SearchScopeProjectAction();
        setSelected(fSearchScopeWorkspaceAction);
    }
}