RFR: 8288537: Move Devirtualizer out of hotspot/share/memory/iterator.hpp [v3]

[Ioi Lam]

On Fri, 17 Jun 2022 20:14:31 GMT, Stefan Karlsson <stefank at openjdk.org> wrote:

>> Ioi Lam has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   renamed include guard macro
>
> src/hotspot/share/utilities/devirtualizer.inline.hpp line 2:
> 
>> 1: /*
>> 2:  * Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
> 
> Since these new files are mainly copied code, would you mind retaining the copyright dates. Right now this look like newly created code.

I updated the copyright year to 2018-2022, since the Devirtualizer class was first added in 2018 in [JDK-8204540](https://bugs.openjdk.org/browse/JDK-8204540)

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PR: https://git.openjdk.org/jdk/pull/9176