Fix non-AOT compatible code

[kant2002]

Changes applied to singl-file executable as well. Incompatible changes with these modes documented at https://docs.microsoft.com/en-us/dotnet/core/deploying/single-file#api-incompatibility

[christophwille]

For documentation purposes: https://docs.microsoft.com/en-us/dotnet/core/deploying/single-file#api-incompatibility

[kant2002]

Is there something which I should act on?

[kant2002]

Is there something which I should act on?

[christophwille]

My comment was only about the "Why" this change is a good idea (I knew about this problem, others might not).

[kant2002]

Friendly ping.