the stack trace line is error

[AiSY-Yang]

when i run a test in visual studio,the stack trace line is error like this dotnet 5.0 is right ,line number is 126 dotnet 3.1 is wrong, line number of stack tarce is 127 ,actual is 126 and if i comment some line, the stack trace line is end of comment

the code is https://github.com/AiSY-Yang/ExtensionMethods/tree/c257b01fbea6608b2e1ea3d64297132f1846c941 forgive me for not copy core code in a demo, i do this and discover problem is no longer arose