RFR: 8242597: Remove GenericTaskQueue<>::push_slow

[Kim Barrett]

> On Apr 14, 2020, at 4:31 AM, Thomas Schatzl <thomas.schatzl at oracle.com> wrote:
> 
> Hi,
> 
> On 14.04.20 05:10, Kim Barrett wrote:
>> Please review this change which simplifies GenericTaskQueue::push() by
>> removing some provably unnecessary code.  The case that push_slow was
>> handling, where dirty_size == N-1, cannot occur.  Also added or
>> updated some related comments.
>> CR:
>> https://bugs.openjdk.java.net/browse/JDK-8242597
>> Webrev:
>> https://cr.openjdk.java.net/~kbarrett/8242597/open.00/
>> Testing:
>> mach5 tier1-7
> 
>  looks good.
> 
> Thomas

Thanks.