fix: ensure snippet hoisting works in the correct scope

.changeset/chatty-windows-own.md

@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: ensure snippet hoisting works in the correct scope

packages/svelte/src/compiler/phases/scope.js

@@ -628,12 +628,8 @@ export function create_scopes(ast, root, allow_reactive_declarations, parent) {
 
 		SnippetBlock(node, context) {
 			const state = context.state;
-			// Special-case for root-level snippets: they become part of the instance scope
-			const is_top_level = !context.path.at(-2);
 			let scope = state.scope;
-			if (is_top_level) {
-				scope = /** @type {Scope} */ (parent);
-			}
+
 			scope.declare(node.expression, 'normal', 'function', node);
 
 			const child_scope = state.scope.child();

packages/svelte/tests/runtime-runes/samples/snippet-hoisting-2/_config.js

@@ -0,0 +1,5 @@
+import { test } from '../../test';
+
+export default test({
+	html: 'a'
+});

packages/svelte/tests/runtime-runes/samples/snippet-hoisting-2/main.svelte

@@ -0,0 +1,13 @@
+<script>
+	let abc = 'a'
+</script>
+
+{@render b()}
+
+{#snippet a()}
+	{abc}
+{/snippet}
+
+{#snippet b()}
+	{@render a()}
+{/snippet}

packages/svelte/tests/snapshot/samples/bind-component-snippet/_expected/client/index.svelte.js

@@ -2,17 +2,17 @@ import "svelte/internal/disclose-version";
 import * as $ from "svelte/internal/client";
 import TextInput from './Child.svelte';
 
-const snippet = ($$anchor) => {
-	$.next();
+var root = $.template(`<!> `, 1);
 
-	var text = $.text("Something");
+export default function Bind_component_snippet($$anchor) {
+	const snippet = ($$anchor) => {
+		$.next();
 
-	$.append($$anchor, text);
-};
+		var text = $.text("Something");
 
-var root = $.template(`<!> `, 1);
+		$.append($$anchor, text);
+	};
 
-export default function Bind_component_snippet($$anchor) {
 	let value = $.state('');
 	const _snippet = snippet;
 	var fragment = root();

packages/svelte/tests/snapshot/samples/bind-component-snippet/_expected/server/index.svelte.js

@@ -1,13 +1,14 @@
 import * as $ from "svelte/internal/server";
 import TextInput from './Child.svelte';
 
-function snippet($$payload) {
-	$$payload.out += `<!---->Something`;
-}
-
 export default function Bind_component_snippet($$payload) {
 	let value = '';
 	const _snippet = snippet;
+
+	function snippet($$payload) {
+		$$payload.out += `<!---->Something`;
+	}
+
 	let $$settled = true;
 	let $$inner_payload;