fix

packages/svelte/src/compiler/phases/3-transform/client/visitors/CallExpression.js

@@ -2,7 +2,7 @@
 /** @import { Context } from '../types' */
 import { dev, is_ignored } from '../../../../state.js';
 import * as b from '#compiler/builders';
-import { get_rune } from '../../../scope.js';
+import { get_rune, UNKNOWN } from '../../../scope.js';
 import { transform_inspect_rune } from '../../utils.js';
 import { should_proxy } from '../utils.js';
 
@@ -82,7 +82,9 @@ export function CallExpression(node, context) {
 		['debug', 'dir', 'error', 'group', 'groupCollapsed', 'info', 'log', 'trace', 'warn'].includes(
 			node.callee.property.name
 		) &&
-		node.arguments.some((arg) => arg.type === 'SpreadElement' || !context.state.scope.evaluate(arg).is_known)
+		node.arguments.some(
+			(arg) => arg.type === 'SpreadElement' || !context.state.scope.evaluate(arg).values.has(UNKNOWN)
+		)
 	) {
 		return b.call(
 			node.callee,

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

@@ -16,7 +16,7 @@ import { is_reserved, is_rune } from '../../utils.js';
 import { determine_slot } from '../utils/slot.js';
 import { validate_identifier_name } from './2-analyze/visitors/shared/utils.js';
 
-const UNKNOWN = Symbol('unknown');
+export const UNKNOWN = Symbol('unknown');
 /** Includes `BigInt` */
 const NUMBER = Symbol('number');
 const STRING = Symbol('string');