RFR: 8203843: BasicParState::default_estimated_thread_count(false) can return 0 in gtest

[Robbin Ehn]

Thanks for addressing this so quickly, looks good!

/Robbin

On 05/28/2018 10:14 PM, Kim Barrett wrote:
> Please review this small change to default_estimated_thread_count to
> always return a value of at least 1.
> 
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8203843
> 
> Webrev:
> http://cr.openjdk.java.net/~kbarrett/8203843/open.00/
>