Method does not need ProblemInfo

[vladimir-ch]

I have been giving it more thought and I am still not convinced that passing ProblemInfo to Method.Init() makes sense. Methods already announce what they need via Needs() and we allocate fields of Location exactly according to this information. Evaluation types issued by Method should/have to match this information. So ProblemInfo will convey what Needs() returned plus perhaps something more but Method cannot use that information anyway, it cannot issue evaluation types beyond Needs(). Comments, @btracey ?

[btracey]

My thought on having it was that hypothetically Methods could have different behavior depending on the ProblemInfo. I'm not sure I have a good example though. The one I had in mind was random restart global optimization. In this case though, the Restarter struct would have something like

type Restarter struct{
    Local Method   // The local optimization method for each restart
}

Here though, Restarter.Needs() would just return Local.Needs(), and so it doesn't need ProblemInfo.