ref: 4a56ddcda879c264538df970f2d1f2b68e9dcd68
dir: /tests/print1.b/
implement Sample; include "sys.m"; sys: Sys; Sample: module { init: fn(); }; init() { sys = load Sys Sys->PATH; sys->print("init %g %f\n", 3.14, 1.48); sys->print("init %d\n", -1); }