RFR: JDK-8136991: [REDO] Additional number of processed references printed with -XX:+PrintReferenceGC after JDK-8047125

[Bengt Rutisson]

Hi everyone,

Could I have a couple of reviews for this change?

http://cr.openjdk.java.net/~brutisso/8136991/webrev.02/
https://bugs.openjdk.java.net/browse/JDK-8136991

Background:

The original change for this issue was more extensive in its changes to 
the log and tracing output. This caused some issues with our internal 
testing. This new change only tries to address the double "ref count" 
logging for PhantomReferences.

Thanks,
Bengt