message: Use try_map one place it makes sense
  Summary: Slightly simpler code
diff: @@ -236,11 +236,9 @@ impl Stmt {
  Ok(Spanned {
  span: x.span,
  node: match x.node {
  - Expr::Tuple(xs) | Expr::List(xs) => Assign::Tuple(
  - xs.into_iter()
  - .map(|x| Self::check_assign(codemap, x))
  - .collect::<anyhow::Result<Vec<_>>>()?,
  - ),
  + Expr::Tuple(xs) | Expr::List(xs) => {
  + Assign::Tuple(xs.into_try_map(|x| Self::check_assign(codemap, x))?)
  + }
  Expr::Dot(a, b) => Assign::Dot(a, b),
  Expr::ArrayIndirection(box (a, b)) => Assign::ArrayIndirection(box (a, b)),
  Expr::Identifier(x) => Assign::Identifier(x),
  