public boolean isInheritorDeep(PsiClass baseClass, @Nullable PsiClass classToByPass) {
   return InheritanceImplUtil.isInheritorDeep(this, baseClass, classToByPass);
 }
 public boolean isInheritor(@NotNull PsiClass baseClass, boolean checkDeep) {
   return InheritanceImplUtil.isInheritor(this, baseClass, checkDeep);
 }