RFR: 8219922: Simplify IndexSetIterator::next using count_trailing_zeros

[Claes Redestad]

Vladimir, Nils,

thanks for reviewing!

/Claes

On 2019-02-28 20:42, Nils Eliasson wrote:
> Indeed.
> 
> +1
> 
> // Nils
> 
> On 2019-02-28 20:38, Vladimir Kozlov wrote:
>> Nice cleanup.
>>
>> thanks,
>> Vladimir