RFR: 8338017: Add AOT command-line flag aliases (Leyden)

[ioi.lam at oracle.com]

Hi Leyden developers,

https://github.com/openjdk/jdk/pull/20516

Please review the first PR for JEP 483: Ahead-of-Time Class Loading & 
Linking [1].

JEP 483 is still in the Candidate stage, but I would like to get the 
reviews rolling so we can integrate soon after it's targeted.

The plan [2] is to break down JEP 483 in a series of 7 PRs to make it 
easier to review. I will post the other PRs soon.

Thanks

- Ioi

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[1] https://openjdk.org/jeps/483
[2] https://bugs.openjdk.org/browse/JDK-8331497