hg: jdk/hs: 8080345: With perm gen gone, perfdata counter sun.gc.policy.generations should be 2, not 3

[erik.helin at oracle.com]

Changeset: d64722b0b371
Author:    ehelin
Date:      2017-11-27 10:51 +0100
URL:       http://hg.openjdk.java.net/jdk/hs/rev/d64722b0b371

8080345: With perm gen gone, perfdata counter sun.gc.policy.generations should be 2, not 3
Reviewed-by: sjohanss, tschatzl
Contributed-by: ysr1729 at gmail.com, erik.helin at oracle.com

! src/hotspot/share/gc/cms/cmsCollectorPolicy.cpp
! src/hotspot/share/gc/g1/g1DefaultPolicy.cpp
! src/hotspot/share/gc/parallel/parallelScavengeHeap.cpp
! src/hotspot/share/gc/shared/collectorPolicy.cpp
+ test/hotspot/jtreg/gc/TestGenerationPerfCounter.java
- test/hotspot/jtreg/gc/metaspace/PerfCounter.java
- test/hotspot/jtreg/gc/metaspace/PerfCounters.java
! test/hotspot/jtreg/gc/metaspace/TestMetaspacePerfCounters.java
! test/hotspot/jtreg/gc/metaspace/TestPerfCountersAndMemoryPools.java
+ test/hotspot/jtreg/gc/testlibrary/PerfCounter.java
+ test/hotspot/jtreg/gc/testlibrary/PerfCounters.java