@Nullable
  public static PsiClass getBaseClass(GrTypeDefinition grType) {
    if (grType.isEnum()) {
      return JavaPsiFacade.getInstance(grType.getProject()).findClass(CommonClassNames.JAVA_LANG_ENUM, grType.getResolveScope());
    }
    else {
      return JavaPsiFacade.getInstance(grType.getProject()).findClass(CommonClassNames.JAVA_LANG_OBJECT, grType.getResolveScope());
    }
  }
@Nullable
  public static PsiClass getBaseClass(GrTypeDefinition grType)