src\libraries\System.Private.CoreLib\src\System\Globalization\CompareInfo.cs (3)
1160return LastIndexOf(source, value, startIndex, startIndex + 1, CompareOptions.None);
1170return LastIndexOf(source, value, startIndex, startIndex + 1, options);
1180return LastIndexOf(source, value, startIndex, count, CompareOptions.None);