[URGENT] RFR: 8216595: Fix broken builds after JDK-8216424

[Per Liden]

Thanks for reviewing. Since it's urgent and trivial I will go ahead and 
push.

/Per

On 01/13/2019 05:27 PM, Claes Redestad wrote:
> Looks good and trivial, thanks for fixing!
> 
> /Claes
> 
> Per Liden <per.liden at oracle.com> skrev: (13 januari 2019 17:19:33 CET)
> 
>     JDK-8216424 removed the variable _total_visits, but left a use of it
>     causing non-product builds to fail. The fix is pretty straight forward,
>     so I propose we fix the issue rather than back out JDK-8216424.
> 
>     Bug:https://bugs.openjdk.java.net/browse/JDK-8216595
>     Webrev:http://cr.openjdk.java.net/~pliden/8216595/webrev.0
> 
>     Testing: tier1
> 
>     /Per
>