Upload Kmake

deps/v8/test/mjsunit/regress/regress-crbug-1259950.js

@@ -0,0 +1,25 @@
+// Copyright 2021 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+function test(obj) {
+  class Base {
+    constructor() {
+      return obj;
+    }
+  }
+  class C extends Base {
+    #x = 1;
+  }
+
+  let c = new C();
+  c = new C();
+}
+
+assertThrows(
+    () => test(globalThis),
+    TypeError, "Cannot initialize #x twice on the same object");
+
+assertThrows(
+    () => test(Object.create(null)),
+    TypeError, "Cannot initialize #x twice on the same object");