git: openjdk/jdk: 8256015: Shenandoah: Add missing Shenandoah implementation in WB_isObjectInOldGen

[Roman Kennke]

Changeset: f39a2c89
Author:    Roman Kennke <rkennke at openjdk.org>
Date:      2020-11-08 20:35:25 +0000
URL:       https://github.com/openjdk/jdk/commit/f39a2c89

8256015: Shenandoah: Add missing Shenandoah implementation in WB_isObjectInOldGen

Reviewed-by: shade

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