private static boolean isTrivial(TerminalBlock tb) {
    PsiVariable variable = tb.getVariable();
    final PsiExpression candidate = LambdaCanBeMethodReferenceInspection
      .canBeMethodReferenceProblem(tb.getSingleStatement(),
                                   new PsiVariable[]{variable}, createDefaultConsumerType(variable.getProject(), variable), null);
    if (!(candidate instanceof PsiCallExpression)) return true;
    final PsiMethod method = ((PsiCallExpression)candidate).resolveMethod();
    return method == null;
  }
private static boolean isTrivial(TerminalBlock tb)