ref: c11957a7915d355d80ff7e6a21721ba05441ca29
dir: /tests/list.b/
implement Sample; include "sys.m"; sys: Sys; Sample: module { init: fn(); }; init() { sys = load Sys Sys->PATH; a : list of string; b := list of {"yes", "no"}; a = "soy" :: a; a = "test" :: a; sys->print("should print yes result %s\n", hd b); c := tl a; sys->print("should print 2 no result %d\n", len a); }