message: [lang] Add Display impl for Errors
diff: @@ -68,5 +68,14 @@ impl ToTokens for Errors {
  }
  }
  +impl std::fmt::Display for Errors {
  + fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
  + for err in &self.errors {
  + err.fmt(f)?;
  + }
  + Ok(())
  + }
  +}
  +
  /// Result type alias for an error type which allows for accumulating errors.
  pub type Result<T> = StdResult<T, Errors>;
  