RFR: Only include regular and humongous regions in traversal set

[Aleksey Shipilev]

On 07/16/2018 05:18 PM, Roman Kennke wrote:
> We see an occasional assert in HeapUncommit test with traversal
> heuristics. The reason is that we put *all* regions into the traversal
> set. Which is, of course, braindead. We only want to put regular+used
> and humongous(+used) regions in traversal set.
> 
> http://cr.openjdk.java.net/~rkennke/fixtraversalset/webrev.00/

Yes, that makes sense. Looks good!

-Aleksey