Possible fix for CI

[JTrenerry]

Issue seems to be the new update for containers 2 days ago, not sure why this flips the order though.

[JTrenerry]

lol wrong way

[JTrenerry]

Doubt this is what we want in the long term but possible quick fix.

[b-paul]

it looks like this commit is what broke things c-cube/ocaml-containers@571f9f3 (did a bisect with pinning versions of containers)

the only change in this commit that differs between ocaml 5.3 and ocaml 4.14.x is the implementation of Map.of_list and Map.to_list, and of_list is used in loadir.ml....... suspicious

though the implementation of of_list in containers and stdlib looks identical, so it must be to_list?!?!

to_list is implemented with a fold in containers which iterates left before right, but is implemented with recursion in stdlib that iterates right before left?!?!?!?! that's probably where things get reversed...

[agle]

Thanks, b-paul, it looks like the fix is to use bindings which defines the order, instead of to_list which preserves stdlib behvaiour (which is undefined for 4.*).

[agle]

I don't think we get any real benefit from supporting OCaml 4.14 so I may just remove it from the test CI matrix and not put more effort into supporting it---this is the second instance of differing stdlib semantics between 4 and 5 I've come across.