RFR: 8341100: Add index entries for terms used in java.lang.Class [v2]

[Chen Liang]

On Mon, 30 Sep 2024 02:18:17 GMT, Joe Darcy <darcy at openjdk.org> wrote:

>> Small update to java.lang.Class docs.
>> 
>> I didn't add an index item for "hidden classes" since the indexing mechanism picks up the section titles.
>
> Joe Darcy has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Respond to review feedback.

Thakns for this cleanup!

-------------

Marked as reviewed by liach (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/21241#pullrequestreview-2338003789