RFR: 8300543 Compiler Implementation for Pattern Matching for switch [v4]

[Maurizio Cimadamore]

On Fri, 21 Apr 2023 10:56:55 GMT, Jan Lahoda <jlahoda at openjdk.org> wrote:

>> This is the first draft of a patch for JEP 440 and JEP 441. Changes included:
>> 
>>  - the pattern matching for switch and record patterns features are made final, together with updates to tests.
>>  - parenthesized patterns are removed.
>>  - qualified enum constants are supported for case labels.
>> 
>> This change herein also includes removal record patterns in for each loop, which may be split into a separate PR in the future.
>
> Jan Lahoda has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Replacing use of mutable callsite with a mutable state.

src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Flow.java line 971:

> 969:                                             it.remove();
> 970:                                             reduces = true;
> 971:                                             continue ;

This continue seems redundant

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PR Review Comment: https://git.openjdk.org/jdk/pull/13074#discussion_r1173947054