RFR: 8273492: Move evacuation failure handling into G1YoungCollector [v4]

[Thomas Schatzl]

> Hi all,
> 
>   can I have reviews for this change that moves young gc evacuation failure handling (`G1EvacFailureRegions`) from `G1CollectedHeap` to `G1YoungCollector`.
> 
> Testing: tier1-3
> 
> Thanks,
>   Thomas

Thomas Schatzl has updated the pull request incrementally with one additional commit since the last revision:

  ayang review

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/5419/files
  - new: https://git.openjdk.java.net/jdk/pull/5419/files/d94e38b0..466f4998

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=5419&range=03
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=5419&range=02-03

  Stats: 9 lines in 3 files changed: 4 ins; 2 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5419.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5419/head:pull/5419

PR: https://git.openjdk.java.net/jdk/pull/5419