RFR: JDK-8292576: Improve wording of AccessFlag-related specs [v2]

[Joe Darcy]

> Spec refinement, including acting on some feedback received for JDK-8266670:
> 
> https://github.com/openjdk/jdk/pull/7445#discussion_r906846794

Joe Darcy has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:

 - Respond to review feedback.
 - Merge branch 'master' into JDK-8292576
 - JDK-8292576: Improve wording of AccessFlag-related specs

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/9912/files
  - new: https://git.openjdk.org/jdk/pull/9912/files/ad8470fe..74940784

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=9912&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=9912&range=00-01

  Stats: 844 lines in 29 files changed: 305 ins; 227 del; 312 mod
  Patch: https://git.openjdk.org/jdk/pull/9912.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9912/head:pull/9912

PR: https://git.openjdk.org/jdk/pull/9912