RFR: 8301992: Embed SymbolTable CHT node [v4]

[Calvin Cheung]

On Thu, 16 Feb 2023 18:45:39 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> Calvin Cheung has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   add Afree() for permanent symbols
>
> This seems fine.  I haven't actually observed us getting to this code, except maybe once, but you might as well keep it.

Thanks @coleenp, @iklam for the review!

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PR: https://git.openjdk.org/jdk/pull/12562