RFR: 8332528: Generate code in SwitchBootstraps.generateTypeSwitch that require fewer adaptations [v3]

[Claes Redestad]

On Thu, 23 May 2024 09:46:51 GMT, Jan Lahoda <jlahoda at openjdk.org> wrote:

>> Claes Redestad has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Add type switch to HelloClasslist
>
> src/java.base/share/classes/java/lang/runtime/SwitchBootstraps.java line 53:
> 
>> 51: import java.lang.classfile.instruction.SwitchCase;
>> 52: 
>> 53: import jdk.internal.constant.MethodTypeDescImpl;
> 
> Nit - this import seems to be unused, and neither seem to be the changes to `MethodTypeDescImpl`. Is there some use missing? (OTOH, I like the `StaticHolders` for the stuff that relates to the enum-switch special case, for the time being.)

Oops, some leftovers from the optimizations I reverted. Fixed.

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PR Review Comment: https://git.openjdk.org/jdk/pull/19307#discussion_r1611478359