message: doc(engine) Explain why calling `unwrap` is safe here.
diff: @@ -83,6 +83,9 @@ impl JITArtifact {
  let compilation = compiler.compile_module(
  &jit.target(),
  &compile_info,
  + // SAFETY: Calling `unwrap` is safe since
  + // `environ.translate()` above will write some data into
  + // `module_translation_state`.
  translation.module_translation_state.as_ref().unwrap(),
  translation.function_body_inputs,
  )?;
  