fix some stuff that was silently broken

packages/svelte/src/internal/client/dom/blocks/snippet.js

@@ -92,7 +92,7 @@ export function createRawSnippet(fn) {
 			var fragment = create_fragment_from_html(html);
 			element = /** @type {Element} */ (get_first_child(fragment));
 
-			if (DEV && (get_next_sibling(element) !== null || element.nodeType !== 3)) {
+			if (DEV && (get_next_sibling(element) !== null || element.nodeType !== 1)) {
 				w.invalid_raw_snippet_render();
 			}
 

packages/svelte/src/internal/client/render.js

@@ -290,10 +290,10 @@ let mounted_components = new WeakMap();
  */
 export function unmount(component) {
 	const fn = mounted_components.get(component);
-	if (DEV && !fn) {
+
+	if (fn) {
+		fn();
+	} else if (DEV) {
 		w.lifecycle_double_unmount();
-		// eslint-disable-next-line no-console
-		console.trace('stack trace');
 	}
-	fn?.();
 }

packages/svelte/tests/runtime-legacy/shared.ts

@@ -102,6 +102,9 @@ let console_log = console.log;
 // eslint-disable-next-line no-console
 let console_warn = console.warn;
 
+// eslint-disable-next-line no-console
+let console_error = console.error;
+
 export function runtime_suite(runes: boolean) {
 	return suite_with_variants<RuntimeTest, 'hydrate' | 'ssr' | 'dom', CompileOptions>(
 		['dom', 'hydrate', 'ssr'],
@@ -445,6 +448,7 @@ async function run_test_variant(
 	} finally {
 		console.log = console_log;
 		console.warn = console_warn;
+		console.error = console_error;
 
 		config.after_test?.();