RFR: 8301043: Super-interface for PrintStream and PrintWriter [v2]

[Tingjun Yuan]

On Sun, 29 Jan 2023 07:11:26 GMT, Tingjun Yuan <duke at openjdk.org> wrote:

>> Add `java.io.PrintOutput` to represent print operations, and modify `java.io.PrintStream` and `java.io.PrintWriter` to implement it.
>
> Tingjun Yuan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fix grammar mistakes in the doc

I cannot create a CSR request because I don't have write access to the JBS.  The [issue](https://bugs.openjdk.org/browse/JDK-8301043) is not open either.

I'm converting this PR to draft until the issue is open and someone helps me to create a CSR request.  I will close it if you think this PR should never be integrated.

Thanks for reviewing!

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PR: https://git.openjdk.org/jdk/pull/12277