[foreign-memaccess+abi] RFR: Split Stream operations, fix final and class properties [v4]

[Maurizio Cimadamore]

On Wed, 21 Sep 2022 09:29:19 GMT, Per Minborg <duke at openjdk.org> wrote:

>> This PR splits Stream operations into separate lines, and fixes some `final` and class issues.
>> 
>> Some smaller issues are also fixed not related to the above.
>
> Per Minborg has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains four commits:
> 
>  - Merge foreign-memaccess+abi
>  - Revert some more final declarations
>  - Revert most classes marked final
>  - Split Stream operations, fix final and class properties

test/jdk/java/foreign/TestSegmentAllocators.java line 381:

> 379:     }
> 380: 
> 381:     record NamedAllocationFunction<X, L extends ValueLayout>(AllocationFunction<X, L> allocationFunction,

If the goal of this is to show a string name in the test results, I think it can also be achieved by simply adding the string to the test parameters - e.g. 


new Object[] { factory,
                    ValueLayout.JAVA_DOUBLE.withOrder(ByteOrder.BIG_ENDIAN),
                    (AllocationFunction.OfDoubleArray) SegmentAllocator::allocateArray),
                    ToArrayHelper.toDoubleArray,
                    ""OfDoubleArray" // <----------------------
                    });


Which we also do in other tests

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PR: https://git.openjdk.org/panama-foreign/pull/724