Wrong migration for self closing tags with slot attribute

[paoloricciuti]

Describe the bug

This

<Component>
	<div slot="something" />
</Component>

is currently migrated to

<Component>
	{#snippet something()}
		<div >
	{/snippet}</div>
</Component>

which is completely broken.

Reproduction

1. Go here
2. Press migrate
3. Observe the broken state

Logs

System Info

repl

Severity

annoyance