RFR: 8373714: Shenandoah: Register heuristic penalties following a degenerated GC [v5]

[Kelvin Nilsen]

> Add a triggering penalty when we execute degenerated GC cycle.

Kelvin Nilsen has updated the pull request incrementally with one additional commit since the last revision:

  touch file to force tests

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Changes:
  - all: https://git.openjdk.org/jdk/pull/28834/files
  - new: https://git.openjdk.org/jdk/pull/28834/files/87b41568..7b0efb3e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28834&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28834&range=03-04

  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/28834.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28834/head:pull/28834

PR: https://git.openjdk.org/jdk/pull/28834