RFR: 8372098: Move AccessFlags to InstanceKlass [v2]

[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 two InstanceKlass::cast() calls that might not be InstanceKlass.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/28371/files
  - new: https://git.openjdk.org/jdk/pull/28371/files/80079012..e8973f59

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28371&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28371&range=00-01

  Stats: 5 lines in 2 files changed: 0 ins; 1 del; 4 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