RFR: 8293293: Move archive heap loading code out of heapShared.cpp

[Erik Joelsson]

On Fri, 2 Sep 2022 05:31:35 GMT, Ioi Lam <iklam at openjdk.org> wrote:

> I moved all code related to loading the archive heap regions into a new file, archiveHeapLoader.cpp.
> 
> A diff of the new archiveHeapLoader.cpp and the old heapShared.cpp shows that the moved code is identical, except for the change of `HeapShared::` to `ArchiveHeapLoader::`.
> 
> I also removed unnecessary entries in JVM_EXCLUDE_FILES that are already covered by the `cds/` pattern.

Build change looks good.

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Marked as reviewed by erikj (Reviewer).

PR: https://git.openjdk.org/jdk/pull/10138