Method registerFileError

src/IECore/CachedReader.cpp:86–93

	private :

		void registerFileError( const std::string &filePath, const std::string &errorMsg )
		{
			FileErrors::accessor it;
			if ( m_fileErrors.insert( it, filePath ) )
			{
				it->second = errorMsg;
			}
		}

		static MurmurHash hashFn( const ComputeParameters &params )
		{