RFR: 8315585: Optimization for decimal to string [v7]

[Roger Riggs]

On Fri, 8 Sep 2023 15:48:55 GMT, Claes Redestad <redestad at openjdk.org> wrote:

>> Going from `jla.newStringNoRepl(bytes, ISO_...)` to `jla.newStringLatin1NoRepl(bytes)` isn't much of a code simplification, so this distracts a bit from the bulk of the changes in this PR. I agree that it *might* help inlining since the former calls into a large method, but I think we ought to focus on one thing at a time so if this doesn't significantly help on the benchmarks we have available it would be better to leave it out for now.
>
> I'll have a look at #14655 though I note that @RogerRiggs has already commented that this might not carry its own weight. These internal API bridges are a nuisance so we need to take care to make sure that any addition is actually necessary, not just convenient for the time being.

I've recommended before to not add this convenience method, there's quite enough stuff in shared secrets and adds function that is too close to one already there.

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PR Review Comment: https://git.openjdk.org/jdk/pull/15555#discussion_r1320079180