fix: ensure dynamic call expressions correctly generate output (#14345)

.changeset/moody-bears-change.md

@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: ensure dynamic call expressions correctly generate output

packages/svelte/src/compiler/phases/2-analyze/visitors/CallExpression.js

@@ -5,6 +5,7 @@ import { get_rune } from '../../scope.js';
 import * as e from '../../../errors.js';
 import { get_parent, unwrap_optional } from '../../../utils/ast.js';
 import { is_pure, is_safe_identifier } from './shared/utils.js';
+import { mark_subtree_dynamic } from './shared/fragment.js';
 
 /**
  * @param {CallExpression} node
@@ -179,6 +180,7 @@ export function CallExpression(node, context) {
 			context.state.expression.has_call = true;
 			context.state.expression.has_state = true;
 			context.state.expression.can_inline = false;
+			mark_subtree_dynamic(context.path);
 		}
 	}
 }

packages/svelte/tests/runtime-legacy/samples/inline-expressions-subtree/_config.js

@@ -0,0 +1,5 @@
+import { test } from '../../test';
+
+export default test({
+	html: '<span class="red">A</span>\n<div><span class="red">B</span></div>'
+});

packages/svelte/tests/runtime-legacy/samples/inline-expressions-subtree/main.svelte

@@ -0,0 +1,4 @@
+<span class={(() => 'red')()}>A</span>
+<div>
+  <span class={(() => 'red')()}>B</span>
+</div>