ref: aeb291f9491d8ef630d8b1e41116ebe4080fb8e3
dir: /libstd/systypes.myr/
pkg sys = type size = int64 /* spans entire address space */ type usize = int64 /* signed size */ type off = uint64 /* file offsets */ type intptr = uint64 /* can hold any pointer losslessly */ type time = int64 /* milliseconds since epoch */ ;;