@ts-ignore is now supported in Svelte tags!
Before today, if you ever tried to do something like this in Svelte:
<script lang="ts">
export let items: unknown[];
</script>
<!-- @ts-ignore -->
{#each items as item}
<p>{item.name}</p>
{/each}
.. the @ts-ignore would be.. well, ignored.
And if you tried searching for a solution, chances are you'd run into this workaround (by cough yours truly).
But hurray, that's no longer relevant, now that https://github.com/sveltejs/language-tools/pull/2950 is merged.