RFR: 8065554: MatchResult should provide values of named-capturing groups [v4]

[Raffaello Giulietti]

On Mon, 29 Aug 2022 13:49:52 GMT, Raffaello Giulietti <duke at openjdk.org> wrote:

>> Add support for named groups to java.util.regex.MatchResult
>
> Raffaello Giulietti has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8065554: MatchResult should provide values of named-capturing groups

Added an implementation of `MatchResult` in the test class that does not override any of the default methods.
More speaking method names.

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PR: https://git.openjdk.org/jdk/pull/10000