RFR (M): 8201492: Properly implement non-contiguous generations for reference discovery

[Thomas Schatzl]

On Sun, 2018-04-29 at 20:45 +0200, Thomas Schatzl wrote:
> Hi,
> 
> On Fri, 2018-04-27 at 21:23 -0400, Kim Barrett wrote:
> > > On Apr 18, 2018, at 2:52 AM, Thomas Schatzl <thomas.schatzl at oracl
> > > e.
> > > com> wrote:
> > > 
> > > 
[...]
> Webrevs
> http://cr.openjdk.java.net/~tschatzl/8201492/webrev.1 (full)
> http://cr.openjdk.java.net/~tschatzl/8201492/webrev.0_to_1 (diff)
> 
> I pushed the changes through hs-tier1-3 again.

  for clarification, I already removed the "SpanReferenceProcessor" on
Friday after Stefan's comments, and this is what has been tested in
that run.

The other changes seem to be trivial enough - I did some 30min
kitchensink reference stress run just to check.

Thanks,
  Thomas