RFR: 8287064: Modernize ProxyGenerator.PrimitiveTypeInfo [v5]

Fri May 27 02:02:30 UTC 2022

On Fri, 27 May 2022 00:16:00 GMT, liach <duke at openjdk.java.net> wrote:

>> Simplify opcode handling, use `final` in `PrimitiveTypeInfo`, and replace the hash map with a simple lookup, similar to what's done in [JDK-8284880](https://bugs.openjdk.java.net/browse/JDK-8284880) (#8242)
>
> liach has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Doesn't hurt to be more specific

Marked as reviewed by mchung (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/8801