add the harder test

Author: Rich-Harris

packages/svelte/tests/runtime-runes/samples/snippet-optional-arguments-defaults/_config.js

@@ -1,5 +1,5 @@
 import { test } from '../../test';
 
 export default test({
-	html: '013'
+	html: '013/023'
 });

packages/svelte/tests/runtime-runes/samples/snippet-optional-arguments-defaults/main.svelte

@@ -1,5 +1,9 @@
-{#snippet snip(a, b = 1, c = (2, 3))}
-	{a}{b}{c}
+{#snippet one(a, b = 1, c = (2, 3))}
+  {a}{b}{c}
 {/snippet}
 
-{@render snip(0)}
+{#snippet two(a, b = (1, 2), c = 3)}
+  {a}{b}{c}
+{/snippet}
+
+{@render one(0)}/{@render two(0)}