fix: check references for blockers on server, too (#18352)

We forgot the server in #18309

Fixes #18344

.changeset/strong-cups-prove.md

@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: check references for blockers on server, too

packages/svelte/src/compiler/phases/3-transform/server/visitors/shared/utils.js

@@ -343,7 +343,7 @@ export class PromiseOptimiser {
 	 * @param {ExpressionMetadata} metadata
 	 */
 	check_blockers(metadata) {
-		for (const binding of metadata.dependencies) {
+		for (const binding of metadata.references) {
 			if (binding.blocker) {
 				this.#blockers.add(binding.blocker);
 			}

packages/svelte/tests/runtime-runes/samples/async-derived-prop-closure-hydration/Child.svelte

@@ -0,0 +1,5 @@
+<script>
+	let { onclick } = $props();
+</script>
+
+<button {onclick}>A button</button>

packages/svelte/tests/runtime-runes/samples/async-derived-prop-closure-hydration/_config.js

@@ -0,0 +1,11 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	mode: ['hydrate'],
+
+	async test({ assert, target }) {
+		await tick();
+		assert.htmlEqual(target.innerHTML, 'foo <button>A button</button>');
+	}
+});

packages/svelte/tests/runtime-runes/samples/async-derived-prop-closure-hydration/main.svelte

@@ -0,0 +1,12 @@
+<script>
+	import Button from './Child.svelte';
+
+	async function getFoo() {
+		return 'foo';
+	}
+
+	const foo = $derived(await getFoo());
+</script>
+
+{foo}
+<Button onclick={() => foo} />