internal int GetCaseInsensitiveHashCode(string str, bool forceRandomizedHashing, long additionalEntropy)
 {
     if (str == null)
     {
         throw new ArgumentNullException("str");
     }
     return(TextInfo.InternalGetCaseInsHash(this.m_dataHandle, this.m_handleOrigin, this.m_textInfoName, str, forceRandomizedHashing, additionalEntropy));
 }