8372098: Move AccessFlags to InstanceKlass

[coleenp]

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.

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• JDK-8372098: Move AccessFlags to InstanceKlass (Enhancement - P4)

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