RFR: 8340308: PassFailJFrame: Make rows default to number of lines in instructions

[Alexander Zvegintsev]

On Tue, 17 Sep 2024 13:45:06 GMT, Alexey Ivanov <aivanov at openjdk.org> wrote:

> It has become quite common to use the following code
> 
> 
> .rows((int) INSTRUCTIONS.lines().count() + 1)
> 
> 
> to set the number of rows for `PassFailJFrame`.
> 
> Make this the default value. Newer tests could drop `.rows` from builder configuration if the new default works well.
> 
> If a test needs customising the new default value, the newly added method `rowsAdd` could be used to increase the number of rows.

As another improvement, we can also consider calculating the default number of columns (based on the widest string?) in a separate issue.

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Marked as reviewed by azvegint (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/21039#pullrequestreview-2315852047