private int calculateArgumentsComplexity(@Nullable PsiExpressionList arguments) {
    if (arguments == null) return 0;
    int c = 0;
    for (PsiExpression argument : arguments.getExpressions()) {
      c += PARAMETER + getComplexity(argument);
    }
    return c;
  }
private int calculateArgumentsComplexity(@Nullable PsiExpressionList arguments)