if keyEqual(unsafe.Pointer(&head.key), abi.NoEscape(unsafe.Pointer(&key))) &&
		valEqual(unsafe.Pointer(&head.value), abi.NoEscape(unsafe.Pointer(&value))) {
		// Drop the head of the list.
		return head.overflow.Load(), true
	}
	i := &head.overflow
	e := i.Load()
	for e != nil {