Attempting to JIT compile method, Best Workaround?

Given the following sample Code, I this error on iOS:

ExecutionEngineException: Attempting to JIT compile method 'TestBehaviour/Test:Run (int)' while running with --aot-only.

Code:

 public class TestBehaviour : MonoBehaviour
 {
     abstract class BaseTest
     {
         public abstract void Run<T>(T something);
     }
 
     class Test : BaseTest
     {
         public override void Run<T>(T something)
         {
         }
     }
 
     void Start()
     {
         BaseTest test = new Test();
         test.Run(42);
         test.Run("42");
     }
 }

What is the best workaround to get this working on Unity 5? (5.2.2p4) What is the best way to refactor the above code to make it work?

I am aware of the limitations of Unitys Mono version and AOT compile. I just search around the Web for hours just to try out advices that won't work (Maybe due to recent Unity updates). So I opened this post to gather the latest advice for the most recent Unity version.