RFR: 8292596: Make SymbolHashMap a ResourceHashtable [v2]

[Coleen Phillimore]

On Thu, 18 Aug 2022 15:28:29 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> Please review this straightforward change to use ResourceHashtable for SymbolHashMap, which is used by the Class File Reconstituter.  The table maps Symbol* to constant pool indices for loaded classes (Symbol refcounting unnecessary as the class is not unloaded because it's in use).
>> Tested with jvmti tests locally and tier 1-3.
>
> Coleen Phillimore has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Remove comment.

Thanks, Harold!

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PR: https://git.openjdk.org/jdk/pull/9917