NS_ERROR_ILLEGAL_VALUE. This helps make our error names more consistent with COM git-svn-id: svn://10.0.0.236/trunk@14286 18797224-902f-48f8-a5cc-f745e15eee43
git-svn-id: svn://10.0.0.236/trunk@13090 18797224-902f-48f8-a5cc-f745e15eee43