Error: Expected 2 arguments, but got 1. (ts) for <div transition:fade >

Since svelte-check 1.1.29 the transition shorthand <div transition:fade> incorrectly reports the Error: Expected 2 arguments, but got 1. error.

When using the shorthand notation, svelte calls the fade (or any other function) with 2 arguments, the element and an empty object. REPL

To Reproduce

<script lang="ts">
  import { fade } from "svelte/transition";

  let visible = true;

  function toggle() {
    visible = !visible;
  }
</script>

<button on:click={toggle}>Toggle</button>
{#if visible}
  <div transition:fade>Fades in and out</div>
{/if}

Demo: https://github.com/bfanger/svelte-check-transition-bug

The failed run: https://github.com/bfanger/svelte-check-transition-bug/runs/1783108223?check_suite_focus=true

[dummdidumm]

A fallback for older Svelte versions is now available which should silence the error.

[bfanger]

I can’t predict what svelte compiler will do in the future, but right now it adds the {} iwhen there are no explicit parameters. Im not sure if that behavior is the same for all shorthands notations.