RFR: 8265129: Add intrinsic support for JVM.getClassId [v11]

[Vladimir Kozlov]

On Sat, 22 May 2021 09:09:45 GMT, Denghui Dong <ddong at openjdk.org> wrote:

>> Good.
>> What testing you did?
>
>> Good.
>> What testing you did?
> 
> fastdebug on Linux x86_64
> jtreg  hotspot/jtreg/compiler jdk/jdk/jfr/

@D-D-H please update change to latest sources.

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PR: https://git.openjdk.java.net/jdk/pull/3470