RFR: 8332394: Add friendly output when @IR rule missing value [v2]

[Hamlin Li]

On Fri, 17 May 2024 07:33:43 GMT, Christian Hagedorn <chagedorn at openjdk.org> wrote:

>> Thanks, it makes sense.
>> 
>> I also created https://bugs.openjdk.org/browse/JDK-8332402 to track adding tests in `TestBadFormat`
>
> Thanks!

New pr adding tests is here: https://github.com/openjdk/jdk/pull/19302

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

PR Review Comment: https://git.openjdk.org/jdk/pull/19270#discussion_r1606436611