// Copyright 2018 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.

// Runtime_ObjectCloneIC_Slow() source argument must be a HeapObject handle,
// because undefined/null are allowed.
function spread(o) { return { ...o }; }

// Transition to MEGAMORPHIC
assertEquals({}, spread(new function C1() {}));
assertEquals({}, spread(new function C2() {}));
assertEquals({}, spread(new function C3() {}));
assertEquals({}, spread(new function C4() {}));
assertEquals({}, spread(new function C5() {}));

// Trigger Runtime_ObjectCloneIC_Slow() with a non-JSReceiver.
assertEquals({}, spread(undefined));