Integrated: Fix satb barrier for object array copy

[Kelvin Nilsen]

On Wed, 29 Mar 2023 23:54:25 GMT, Kelvin Nilsen <kdnilsen at openjdk.org> wrote:

> The satb barrier for overwritten arrays residing in old-gen must be unconditional during young GC.
> 
> During old GC, the satb barrier is only needed for overwritten old-gen arrays if the array is below TAMS within its old-gen region.

This pull request has now been integrated.

Changeset: ba4161de
Author:    Kelvin Nilsen <kdnilsen at openjdk.org>
URL:       https://git.openjdk.org/shenandoah/commit/ba4161de7687db8ab225a0bbff52e56b1dbefbec
Stats:     52 lines in 2 files changed: 45 ins; 0 del; 7 mod

Fix satb barrier for object array copy

Reviewed-by: shade

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PR: https://git.openjdk.org/shenandoah/pull/237