RFR: 8256392: C2: Various Node cleanups [v2]

Tue Nov 17 12:09:04 UTC 2020

On Tue, 17 Nov 2020 10:25:59 GMT, Nils Eliasson <neliasso at openjdk.org> wrote:

>> Claes Redestad has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Add back Node::lookup: used by ppc
>
> Looks good.

@neliasso @TobiHartmann @iwanowww - thank you for reviewing! Just waiting for the PPC build to turn green

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PR: https://git.openjdk.java.net/jdk/pull/1223