RFR: 8260046: Assert left >= right in pointer_delta() methods [v2]

[Albert Mingkun Yang]

On Tue, 11 May 2021 10:48:19 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

>> Adding the assertion, and fixing a benign violation.
>> 
>> Test: tier1-7; no violation of this assertion.
>
> Albert Mingkun Yang has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains two commits:
> 
>  - merge master
>  - delta

Rerun tier1-7 after the merge; no violation of the new assertion.

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PR: https://git.openjdk.java.net/jdk/pull/3900