[lworld] RFR: 8328543: [lworld] Library and test updates to use --enable-preview instead of ValhallaFeatures [v6]

[Mandy Chung]

On Thu, 28 Mar 2024 14:11:58 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

>> Update AccessFlag and tests to JEP 401 and use of --enable-preview instead of ValhallaFeatures.
>> Minor formatting change to java.lang.Character to allow it to be a value class with --enable-preview.
>> (The class file format version numbers will need to be updated when re-synching with the mainline).
>
> Roger Riggs has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Remove extr enable preview and test code

test/jdk/java/lang/reflect/AccessFlag/ClassAccessFlagTest.java line 29:

> 27:  * @summary Test expected AccessFlag's on classes.
> 28:  * @modules java.base/jdk.internal.misc
> 29:  * @enablePreview

Should drop `@enablePreview`.  Same as `test/jdk/java/lang/reflect/AccessFlag/BasicAccessFlagTest.java`

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PR Review Comment: https://git.openjdk.org/valhalla/pull/1060#discussion_r1543259724