message: [lang] Add clarifying annotation to some strange code
diff: @@ -83,6 +83,8 @@ fn codegen_for_messages(tokens: &mut TokenStream, contract: &hir::Contract) {
  content
  };
  tokens.extend(quote! {
  + // Apparently this `use` is required even though it should not be.
  + // -> Further investigations needed!
  use pdsl_model::messages;
  pdsl_model::messages! {
  #messages_content
  