Upload Kmake

deps/v8/test/mjsunit/harmony/weakrefs/symbol-in-finalizationregistry.js

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+// Copyright 2023 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.
+
+// Flags: --expose-gc --noincremental-marking
+
+(async function () {
+
+  let cleanUpCalled = false;
+  const fg = new FinalizationRegistry((target) => {
+    assertEquals('123', target);
+    cleanUpCalled = true;
+  });
+
+  (function () {
+    const innerKey = Symbol('123');
+    fg.register(innerKey, '123');
+  })();
+
+  // We need to invoke GC asynchronously and wait for it to finish, so that
+  // it doesn't need to scan the stack. Otherwise, the objects may not be
+  // reclaimed because of conservative stack scanning and the test may not
+  // work as intended.
+  await gc({ type: 'major', execution: 'async' });
+  assertFalse(cleanUpCalled);
+
+  // Check that cleanup callback was called in a follow up task.
+  setTimeout(() => { assertTrue(cleanUpCalled); }, 0);
+
+})();