RFR: 8255150: Add utility methods to check long indexes and ranges [v3]

Fri Nov 13 08:52:22 UTC 2020

On Sat, 7 Nov 2020 11:38:50 GMT, Vladimir Ivanov <vlivanov at openjdk.org> wrote:

>> Roland Westrelin has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR.
>
> Marked as reviewed by vlivanov (Reviewer).

I noticed the compiler test would fail with -Xcomp. I pushed a fix for that

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PR: https://git.openjdk.java.net/jdk/pull/1003