RFR: JDK-8075816: AliasLevel is broken and should be deprecated

[Tobias Hartmann]

On Thu, 7 Apr 2022 08:29:07 GMT, Tobias Holenstein <duke at openjdk.java.net> wrote:

> Deprecated AliasLevel and edited help messages.
> Added flag to VMDeprecatedOptions test.
> 
> Checked that tests are not affected.

Looks good to me.

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Marked as reviewed by thartmann (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/8140