public static void askAndTurnRefsToSuper(final Project project,
                                           final SmartPsiElementPointer classPointer,
                                           final SmartPsiElementPointer interfacePointer) {
    final PsiElement classElement = classPointer.getElement();
    final PsiElement interfaceElement = interfacePointer.getElement();
    if (classElement instanceof PsiClass && interfaceElement instanceof PsiClass) {
      askAndTurnRefsToSuper((PsiClass)classElement, (PsiClass)interfaceElement);
    }
  }
public static void askAndTurnRefsToSuper(final Project project,
                                           final SmartPsiElementPointer classPointer,
                                           final SmartPsiElementPointer interfacePointer)