@NotNull
  private static String getContainingClassName(@NotNull MethodCandidateInfo methodCandidate) {
    PsiMethod method = methodCandidate.getElement();
    PsiClass containingClass = method.getContainingClass();
    return containingClass == null ? method.getContainingFile().getName() : HighlightUtil.formatClass(containingClass, false);
  }
@NotNull
  private static String getContainingClassName(@NotNull MethodCandidateInfo methodCandidate)