Hopefully, it doesn't change anything. The motivation was [this](https://github.com/JuliaLang/julia/commit/5f2f69d1b65206a7278d48e5409f2d2defa0863c#commitcomment-6062625). The idea was to extend the definitions of `SmallSigned` and `SmallUnsigned` to include `Int` and `Uint` without changing the behaviour of any of the definitions in `int.jl`. I needed the extended definitions in `mpfr.jl` and `gmp.jl`.