RFR: 8295013: OopStorage should derive from CHeapObjBase

[Thomas Schatzl]

On Sun, 9 Oct 2022 00:38:55 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

> Please review this change to OopStorage to derive from CHeapObjBase instead of
> providing its own `operator new` and `operator delete`.
> 
> We also add OopStorage::create factory, so the MEMFLAGS used to allocate the
> storage object will be the same as that passed to its constructor.  This
> required a bunch of fairly mechanical updates to relevant gtests.
> 
> While I was there, also made OopStorage noncopyable.
> 
> Testing: mach5 tier1

Marked as reviewed by tschatzl (Reviewer).

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PR: https://git.openjdk.org/jdk/pull/10622