sending to devices tuples, named tuples and arrays does not keep track of identical objects

[CarloLucibello]

The issue has been reported in
FluxML/Flux.jl#2513
and is due to these specializations
https://github.com/LuxDL/MLDataDevices.jl/blob/17419d27888e3a48b52f318249a0f037524f0f1e/src/public.jl#L341
The simplest solution would be to remove the specializations and let fmap handle everything.

Possible optimized implementations could be upstreamed to Functors.jl, but we really want to keep track of object identity here.

[avik-pal]

Removing those makes hot loops completely type-unstable for common types

[CarloLucibello]

Why the repo has been archived?

[CarloLucibello]

With FluxML/Functors.jl#82 fmap is type stable for all types

[avik-pal]

Let's do it together with updating functors to v0.5.