RFR: 8267611: Print more info when pointer_delta assert fails [v2]

[Stefan Karlsson]

On Wed, 26 May 2021 11:39:29 GMT, Stefan Karlsson <stefank at openjdk.org> wrote:

>> We've seen a few new failures with the new pointer_delta assert. It would be nice if the assert printed the 'left' and 'right' pointer values.
>
> Stefan Karlsson has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Review kbarrett

Thanks for the reviews!

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PR: https://git.openjdk.java.net/jdk/pull/4163