Get resolved dependancies of IRepository with AutoFac

With interfaces set up like so:

public interface IRepository { };

public interface IFirstRepository : IRepository { };
public interface ISecondRepository : IRepository { };
public interface IThirdRepository : IRepository { };

And a Controller that needs some but not all of these repositories:

public class TestController : BaseController 
{
    private IFirstRepository mFirstRepository;
    private ISecondRepository mSecondRepository;
    // Standard DI for MVC 
    public TestController(IFirstRepository first, ISecondRepository second)
    {
        mFirstRepository = first;
        mSecondRepository = second;
    }
}

And BaseController looks like:

public class BaseController : Controller {
     public IEnumerable<IRepository> GetRepos()
     {
         // One solution is to use reflection 
         // to get all properties that are IRepositories.
         // Something along the lines of;
         return typeof(this).GetProperties().Where(prop=>prop is IRepository);

         // But is there a way to use the AutoFac context
         // to get the repos, rather than use reflection?
         // it surely already has that info since it
         // was able to call the constructor correctly?
     }
}

Is there a way BaseController can utilize the AutoFac context and existing info to get the collection of the IRepository instances requested by the TestController?

Autofac surely already has that info since it was able to call the constructor with the correct instances.

NB: The only reason I don't just use reflection here is performance concerns.