Make setindex(::Tuple, _, ::StaticInteger) inferrable

[tkf]

fix #5

FYI this is how Base.setindex is defined https://github.com/JuliaLang/julia/blob/7e6ef91c9d0bf89de7b45a46aaacf4f644986b69/base/tuple.jl#L44-L54

[codecov]

Codecov Report

Merging #6 into master will increase coverage by 0.14%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master       #6      +/-   ##
==========================================
+ Coverage   78.59%   78.74%   +0.14%     
==========================================
  Files           6        6              
  Lines         285      287       +2     
==========================================
+ Hits          224      226       +2     
  Misses         61       61

Impacted Files	Coverage Δ
src/StaticNumbers.jl	88.31% <100%> (+0.31%)	⬆️

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[perrutquist]

Thanks!

[tkf]

Thanks for merging this!

It's not urgent, it'd be great if this can be released soon-ish. We are waiting for the release in jw3126/Setfield.jl#120