RFR(S): 7095243: Disambiguate ReferenceProcessor::_discoveredSoftRefs

[John Cuthbertson]

Hi Everyone,

Can I have a couple of volunteers review the changes for this CR? The 
webrev can be found at: http://cr.openjdk.java.net/~johnc/7095243/webrev.0/

Summary:
As part of the review comments for 6484982 (adding reference processing 
to G1 evacuation pauses) a couple of the reviewers thought that using 
_discoveredSoftRefs when referring to the entire array of discovered 
lists was unclear and it was requested that role of _discoveredSoftRefs 
be disambiguated. These changes address that review comment. I have 
renamed the array of discovered reference lists (_discoveredSoftRefs et 
al are just pointers into the array) and use the more generic name in 
the contexts where we are referring to the entire array.

Testing: Dacapo2006 and GC locker test from the GC test suite with _all_ 
collectors and jprt.

Thanks,

JohnC