[jdk11u-dev] RFR: 8223575: add subspace transitions to gc+metaspace=info log lines [v2]

[Goetz Lindenmaier]

> I backport this for parity with 11.0.17-oracle.
> 
> src/hotspot/share/gc/shared/genCollectedHeap.cpp had to be resolved because it has a
> somewhat different logic.
> 
> I had to port the change to Shenandoah.

Goetz Lindenmaier has updated the pull request incrementally with one additional commit since the last revision:

  Shenandoah support

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk11u-dev/pull/1126/files
  - new: https://git.openjdk.java.net/jdk11u-dev/pull/1126/files/e6d51dde..d1ff462d

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=1126&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=1126&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/1126.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/1126/head:pull/1126

PR: https://git.openjdk.java.net/jdk11u-dev/pull/1126