RFR: 8296231: Fix MEMFLAGS for CHeapBitMaps

[Stefan Karlsson]

On Wed, 2 Nov 2022 14:24:07 GMT, Stefan Karlsson <stefank at openjdk.org> wrote:

> Some usages of CHeapBitMaps rely on the default value of the MEMFLAGS argument (mtInternal). This is undesirable, and should be fixed.
> 
> I'd prefer to remove the default value, but there is currently a PR touching the BitMap classes, so I'd like to limit this Bug to only fixing the incorrect usage of mtInternal.

Thanks for the reviews and the discussion around future alternatives around CHeap allocations. I'm pushing this fix as is and I expect that we'll continue talking allocation strategies in other threads/PRs.

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PR: https://git.openjdk.org/jdk/pull/10948