ref: b17873ed4e6a14786758fd68290ef572b0b88f10
dir: /test/implexpr.myr/
use std trait favorite @a = Fav : @a ;; impl favorite int = Fav = 12 ;; impl favorite char = Fav = 'z' ;; impl favorite byte[:] = Fav = "hello" ;; const main = { std.put("{},{},{}\n", impl(Fav, int), impl(Fav, char), impl(Fav, byte[:])) }