ref: 24a566ff1751b246c8b6efd8adea3447975b9efa dir: /test/foldidx.myr/
use std type xy = struct x : int y : int ;; const X = 123 const Y = 456 const z : xy[1] = [ [.x = X, .y = Y] ] const main = { std.put("{},{}\n", z[0].x, z[0].y) }