RFR: 8240908: RetransformClass does not know about MethodParameters attribute [v3]

[Alex Menkov]

On Wed, 26 Jan 2022 16:27:24 GMT, Alex Menkov <amenkov at openjdk.org> wrote:

>> Changes:
>> - ClassFileReconstituter is updated to restore "MethodParameters" attribute;
>> - handling of the attribute in VM_RedefineClasses is moved to be consistent with other code (like local variable table);
>> - copied ClassTransformer class (from test/jdk/com/sun/jdi/lib/jdb) to /test/lib as it's used by tests from hotspot and jdk (and also by test from Valhalla repo); Will file a follow up issues to updates tests and remove the class from test/jdk/com/sun/jdi/lib/jdb
>
> Alex Menkov has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Simplified the test, added comments

Simplified the test (a lot of code was useful during development/debugging, but now don't have much value).

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PR: https://git.openjdk.java.net/jdk/pull/7180