RFR: 8299726: [cleanup] Some code cleanup in opto/compile.hpp

[xpbob]

On Fri, 6 Jan 2023 09:37:37 GMT, Jie Fu <jiefu at openjdk.org> wrote:

>> Hi all,
>> Int_Array,Scope,TypeData,debug_option_name  is unused
>> Remove them
>> Thanks.
>
> There seems no declarations for `class Int_Array` `class Scope` and `class TypeData`, right?
> 
> Please also update the copyright year to 2023.
> Thanks.

@DamonFool 
Thanks for the review
The code has been updated

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PR: https://git.openjdk.org/jdk/pull/11879