RFR: 8251274: Provide utility types for function SFINAE using extra template parameters

[Kim Barrett]

> On Aug 31, 2020, at 5:38 AM, Erik Österlund <erik.osterlund at oracle.com> wrote:
> 
> Hi Kim,
> 
> Looks good.

Thanks

> 
> Thanks,
> /Erik
> 
> On 2020-08-31 11:18, Kim Barrett wrote:
>> […] OK.  Then here’s a new webrev.  (The gtest file has no changes now, but still shows up in the
>> webrev because of the change then revert in the patch series.)  Just a full, since there seems
>> little point in an incremental.
>> 
>> https://cr.openjdk.java.net/~kbarrett/8251274/open.01/