RFR: 8318101: Additional test cases for CSSAttributeEqualityBug

[Phil Race]

On Fri, 13 Oct 2023 20:21:04 GMT, Alexey Ivanov <aivanov at openjdk.org> wrote:

> Adds additional test cases to `javax/swing/text/html/CSS/CSSAttributeEqualityBug.java`.
> 
> Currently, CSS parser in Java allows space between the number and the unit or percent. This is what the additional test cases verify.
> 
> There's also one additional case for `border-width: medium`.

Marked as reviewed by prr (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/16193#pullrequestreview-1686070571