Potential type instability with prospective 1.6 type inference changes

[lassepe]

There is some potential type instability coming our way:
JuliaLang/julia#36208 (comment)

This is probably one more reason to register all solvers in the general registry so that all of them are covered by PkgEval reports.

[JeffBezanson]

Wow, you did not waste any time noticing this! :) But stay tuned, I might have a mitigation in Base for this.

[zsunberg]

Haha wow @lassepe , how did you even notice this? It looks like the error is in the info section which will be made better when POMDPs.jl 0.9 is released, so I wouldn't worry about it too much. As long as POMDPs is passing, I think it will probably be fixed in the future.

That being said, @lassepe you are probably right that we should register the solvers because they might be a pretty good test of the inference engine.

[lassepe]

@zsunberg I was reading stuff in Base and saw this pop up. But this should actually not be an issue anymore as of JuliaLang/julia@73df43a. Thank you @JeffBezanson !