RFR: 2479: PR marked as ready with jcheck error [v4]

[Zhao Song]

> Currently, when determining if a PR is ready, if the PR doesn't require a review, it also ignores all jcheck failures. Instead, only reviewers check should be ignored in this case.

Zhao Song has updated the pull request incrementally with one additional commit since the last revision:

  Empty commit

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Changes:
  - all: https://git.openjdk.org/skara/pull/1714/files
  - new: https://git.openjdk.org/skara/pull/1714/files/28f368b0..2ef318d3

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=skara&pr=1714&range=03
 - incr: https://webrevs.openjdk.org/?repo=skara&pr=1714&range=02-03

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/skara/pull/1714.diff
  Fetch: git fetch https://git.openjdk.org/skara.git pull/1714/head:pull/1714

PR: https://git.openjdk.org/skara/pull/1714