chore: fix dts jsdoc test

packages/svelte2tsx/test/emitDts/samples/javascript-runes.v5/expected/TestRunes.svelte.d.ts

@@ -1,8 +1,17 @@
+export default TestRunes;
+type TestRunes = {
+    $on?(type: string, callback: (e: any) => void): () => void;
+    $set?(props: Partial<$$ComponentProps>): void;
+} & {
+    baz: () => void;
+};
 declare const TestRunes: import("svelte").Component<{
     foo: string;
     bar?: number;
 }, {
     baz: () => void;
 }, "bar">;
-type TestRunes = ReturnType<typeof TestRunes>;
-export default TestRunes;
+type $$ComponentProps = {
+    foo: string;
+    bar?: number;
+};

packages/svelte2tsx/test/emitDts/samples/javascript-runes.v5/src/TestRunes.svelte

@@ -1,5 +1,6 @@
-<script lang="ts">
-    let { foo, bar = $bindable() }: { foo: string, bar?: number } = $props();
+<script>
+    /** @type {{ foo: string, bar?: number }} */
+    let { foo, bar = $bindable() } = $props();
 
     export function baz() {}
 </script>