Yog Script (.ys, .yns) analyzed: its lexer, parser and syntax tree, names resolved, the class index model — what the build and the editors read a source with.
namespace System;
/// How two values order: below 0 when `x` comes first, 0 when they're
/// equal, above 0 when `y` does — what `List<T>.Sort` takes.
public delegate i32 Comparison<in T>(T x, T y);