Adding test case when there's a setter on A.prototype

Author: caiolima

test/language/module-code/namespace/internals/super-set-to-tdz-binding-with-accessor.js

@@ -0,0 +1,43 @@
+// Copyright (C) 2026 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-ordinarysetwithowndescriptor
+description: >
+    super.foo = V calls the accessor on super class instead of throwing
+    ReferenceError for TDZ binding
+info: |
+    OrdinarySetWithOwnDescriptor ( _O_, _P_, _V_, _Receiver_, _ownDesc_ )
+      ...
+      1. Assert: IsAccessorDescriptor(_ownDesc_) is *true*.
+      1. Let _setter_ be _ownDesc_.[[Set]].
+      1. If _setter_ is *undefined*, return *false*.
+      1. Perform ? Call(_setter_, _Receiver_, « _V_ »).
+      1. Return *true*.
+
+    NOTE: When the super class has an accessor property, the setter is called
+    directly and the Receiver's [[GetOwnProperty]] is never invoked, so the
+    module namespace TDZ binding is not accessed.
+flags: [module]
+features: [let]
+---*/
+
+import * as ns from './super-set-to-tdz-binding-with-accessor.js';
+
+var setterValue;
+
+class A {
+  constructor() { return ns; }
+  set foo(v) { setterValue = v; }
+};
+class B extends A {
+  constructor() {
+    super();
+    super.foo = 14;
+  }
+};
+
+new B();
+
+assert.sameValue(setterValue, 14, "setter on A.prototype should be called with the assigned value");
+
+export let foo = 42;