code: public boolean isDeprecatedLocaleWithFallback (@Nullable final Locale aLocale)
    {
      if (aLocale != null)
      {
        if (m_aLocales.contains (aLocale))
          return true;
        for (final LocaleParts aParts : m_aLocaleParts)
          if (aParts.matchesLocale (aLocale))
            return true;
      }
      return false;
    }
docs: Check if the passed locale is deprecated. Also checks fallbacks (e.g. the
  country "CS" is marked deprecated, therefore the locale "sr_CS" is also
  implicitly deprecated)
  
  @param aLocale
  The locale to check
  @return <code>true</code> if it is deprecated