LayoutTests/streams/readable-stream-default-reader-releaseLock-gc-deadlock.html

<!DOCTYPE html><!-- webkit-test-runner [ jscOptions=--slowPathAllocsBetweenGCs=10 ] -->
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<script>
test(() => {
    for (let i = 0; i < 200; ++i)
        new ReadableStream().getReader().releaseLock();
}, "releaseLock() should not deadlock when it triggers a garbage collection");
</script>