RFR: 8264135: UnsafeGetStableArrayElement should account for different JIT implementation details [v2]

[Doug Simon]

On Wed, 24 Mar 2021 21:19:41 GMT, Vladimir Ivanov <vlivanov at openjdk.org> wrote:

>> Doug Simon has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:
>> 
>>   8264135: UnsafeGetStableArrayElement should account for different JIT implementation details
>
> I suggest to leave `testUnsafeAccess()` intact and adjust `testMatched`/`testMismatched` to take into account whether `Compiler.isGraalEnabled() == true` or not.

Ok, good suggestion - done.

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PR: https://git.openjdk.java.net/jdk/pull/3180