[lworld] RFR: 8263024: Convert Valhalla tests using the old framework to the new framework [v2]

[Ekaterina Pavlova]

On Tue, 13 Jul 2021 06:24:39 GMT, Ekaterina Pavlova <epavlova at openjdk.org> wrote:

>> This PR converts compiler/valhalla/inlinetypes tests based on old Valhalla/IR test framework to new one 
>> which was recently integrated by Christian as part of JDK-8254129.
>> The tests which were we decided to convert are basically the ones which extends InlineTypeTest class.
>> The rest of compiler/valhalla/inlinetypes tests were agreed (with Christian and Tobias) to keep untouched 
>> as they are in most cases regression tests.
>> 
>> The conversion rules/approach is pretty well described in the bug's description section (see JDK-8263024).
>> A detailed description of new IR test framework could found in test/hotspot/jtreg/compiler/lib/ir_framework/README.md.
>> 
>> Testing:
>>  Ran compiler/valhalla/inlinetypes in all the configurations used in hs-tier1-9.
>>  There 2 failed converted tests:
>>   compiler/valhalla/inlinetypes//TestNullableArrays.java - new bug JDK-8269070 filed
>>   compiler/valhalla/inlinetypes/TestIntrinsics.java - know issue tracked by JDK-8239003
>> 
>> 
>> Big thanks to Christian and Tobias for advice and help during this tests conversion.
>> 
>> Please review the changes.
>> 
>> Thanks,
>> Katya
>
> Ekaterina Pavlova 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 lworld
>  - Converted to new IR framework

I did rerun compiler/valhalla/inlinetypes in all the configurations used in hs-tier1-9
and only compiler/valhalla/inlinetypes/TestIntrinsics.java failed which is known issue tracked by JDK-8239003

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PR: https://git.openjdk.java.net/valhalla/pull/457