RFR: 8290715: Fix incorrect uses of G1CollectedHeap::heap_region_containing() [v3]

[Thomas Schatzl]

On Thu, 28 Jul 2022 20:04:43 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

>> Thomas Schatzl has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 11 commits:
>> 
>>  - Merge branch 'master' into 8290715-heapregion-containing-no-null
>>  - Some more removal of unnecessary checks
>>  - Initial changes
>>  - Fix the places where the wrong heap_region_containing() method has been used
>>  - kbarrett review
>>  - Remove some more casts
>>  - Revert changes to heap_region_containing()
>>  - Remove cast
>>  - Remove unnecessary changes
>>  - some changes
>>  - ... and 1 more: https://git.openjdk.org/jdk/compare/97fc8deb...5dc2fc08
>
> Looks good.

Thanks @kimbarrett @sangheon for your reviews.

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PR: https://git.openjdk.org/jdk/pull/9584