RFR: 8342692: C2: long counted loop/long range checks: don't create loop-nest for short running loops [v20]

[Roland Westrelin]

On Wed, 21 May 2025 08:36:17 GMT, Christian Hagedorn <chagedorn at openjdk.org> wrote:

>> Rather than `ShortLoopIter`? Or is it something else that you'd like to be better explained?
>
> Yes, rather than `ShortLoopIter`. One could think that it could be a good idea to have such a flag.

Done in new commit.

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PR Review Comment: https://git.openjdk.org/jdk/pull/21630#discussion_r2099826541