docs: future of errors

mute-interpreter/src/env/core.rs

@@ -64,6 +64,9 @@ pub(super) fn core() -> HashMap<String, Value> {
                     .unwrap_or(Node::Int(0))
             }),
         ),
+        // Errors!
+        // XXX: I fully expect errors to be overhauled when chaining and tagged unions
+        // are implemented.
         (
             "error",
             NativeFunc(|args| {