[lworld] RFR: 8275195: [lworld] Revisit use of TypePtr::meet_aryptr() after merge [v2]

[Roland Westrelin]

On Thu, 14 Oct 2021 06:22:26 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

> I'm a bit confused by this logic:

I updated that logic after we discussed it offline.

> Also, can we use an enum for `TypeAryKlassPtr::_null_free`? The tri-state via an int is confusing as well.

I switched to a boolean as the tri-state variable doesn't appear to be needed after all.

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PR: https://git.openjdk.java.net/valhalla/pull/560