RFR: 8336275: Move common Method and Constructor fields to Executable [v3]

[Chen Liang]

On Wed, 21 Aug 2024 15:42:18 GMT, Chen Liang <liach at openjdk.org> wrote:

>> Move fields common to Method and Field to executable, which simplifies implementation. Removed useless transient modifiers as Method and Field were never serializable.
>> 
>> Note to core-libs reviewers: Please review the associated CSR on trivial removal of `abstract` modifier as well.
>
> Chen Liang has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains five commits:
> 
>  - Fix after merge
>  - Merge branch 'master' of https://github.com/openjdk/jdk into feature/executable-inline
>  - Merge branch 'master' of https://github.com/openjdk/jdk into feature/executable-inline
>  - Redundant transient; Update the comments to be more accurate
>  - Inline some common ctor + method fields to executable

The new model here may no longer be valid now that deconstructors and patterns are being added. May revisit only if we are sure of the new model of deconstructors.

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PR Comment: https://git.openjdk.org/jdk/pull/20188#issuecomment-2334385336