message: Reduce some indentation
diff: @@ -199,8 +199,11 @@ impl Desugar<raw::Module> for concrete::Module {
  /// Convert the module in the concrete syntax to a module in the core syntax
  fn desugar(&self, env: &DesugarEnv) -> raw::Module {
  let mut env = env.clone();
  - match *self {
  - concrete::Module::Valid { ref items } => {
  + let items = match *self {
  + concrete::Module::Valid { ref items } => items,
  + concrete::Module::Error(_) => unimplemented!("error recovery"),
  + };
  +
  // The type claims that we have encountered so far! We'll use these when
  // we encounter their corresponding definitions later as type annotations
  let mut prev_claim = None::<(&str, raw::RcTerm)>;
  @@ -279,9 +282,6 @@ impl Desugar<raw::Module> for concrete::Module {
  raw::Module {
  definitions: Nest::new(definitions),
  }
  - },
  - concrete::Module::Error(_) => unimplemented!("error recovery"),
  - }
  }
  }
  