RFR: 8372098: Move AccessFlags to InstanceKlass [v3]

[Coleen Phillimore]

> ArrayKlass doesn't set AccessFlags so don't look for them there.  See CR for details.
> Fixed SA and jvmci.  @iwanowww Can you check that I changed C2 correctly (we talked about this in August).
> Tested with tier1-4.  5-7 in progress.

Coleen Phillimore has updated the pull request incrementally with one additional commit since the last revision:

  Revert a couple more InstanceKlass::casts also to get GHA to restart.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/28371/files
  - new: https://git.openjdk.org/jdk/pull/28371/files/e8973f59..1060463b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28371&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28371&range=01-02

  Stats: 2 lines in 2 files changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/28371.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28371/head:pull/28371

PR: https://git.openjdk.org/jdk/pull/28371