message: Rustfmt updates
diff: @@ -113,9 +113,9 @@ pub fn ty_of<N: Name>(
  let rhs_ty = ty_of(ctx, rhs_expr)?;
  match (&*lhs_ty, &*rhs_ty) {
  - (&Type::Const(TypeConst::U8), &Type::Const(TypeConst::U8)) |
  - (&Type::Const(TypeConst::Bool), &Type::Const(TypeConst::Bool)) |
  - (&Type::Const(TypeConst::Int), &Type::Const(TypeConst::Int)) => {
  + (&Type::Const(TypeConst::U8), &Type::Const(TypeConst::U8))
  + | (&Type::Const(TypeConst::Bool), &Type::Const(TypeConst::Bool))
  + | (&Type::Const(TypeConst::Int), &Type::Const(TypeConst::Int)) => {
  Ok(Rc::new(Type::bool()))
  }
  (lhs_ty, rhs_ty) => Err(TypeError::EqualityOperands {
  