RFR: JDK-8305673: Convert DocCommentParser to use enhanced switch [v3]

[Hannes Wallnöfer]

On Tue, 11 Apr 2023 21:09:27 GMT, Jonathan Gibbons <jjg at openjdk.org> wrote:

>> Please review more cleanup for DocCommentParser, primarily focused on using enhanced switch statements and expressions.
>> 
>> The first commit is mostly IDE-automated.
>> The second commit is manual.
>> 
>> All change are "local".  There are two remaining switch statements using the old form that have non-trivial fall-through code, which could/should be moved out into separate methods.
>
> Jonathan Gibbons has updated the pull request incrementally with one additional commit since the last revision:
> 
>   revert conflicting change

Looks good to me, but the 4th commit adding back the `loop` label doesn't seem to be necessary.

src/jdk.compiler/share/classes/com/sun/tools/javac/parser/DocCommentParser.java line 596:

> 594:         textStart = -1;
> 595: 
> 596:         loop:

This label doesn't seem to be used, why was it added back?

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Marked as reviewed by hannesw (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/13362#pullrequestreview-1387771931
PR Review Comment: https://git.openjdk.org/jdk/pull/13362#discussion_r1168510000