Such as this: https://github.com/aspnet/Mvc/blob/rel/1.1.2/src/Microsoft.AspNetCore.Mvc.Razor/Internal/DefaultRoslynCompilationService.cs#L158

And we should scan the entire repo for any other references.

Does this seem worth porting to patch releases? How obscure is this?