git: openjdk/jdk13u: 8259633: compiler/graalunit/CoreTest.java fails with NPE after JDK-8244543

[duke]

Changeset: ca2baf73
Author:    David Alvarez <alvdavi at openjdk.org>
Committer: Yuri Nesterenko <yan at azul.com>
Date:      2021-01-13 06:57:58 +0000
URL:       https://git.openjdk.java.net/jdk13u/commit/ca2baf73

8259633: compiler/graalunit/CoreTest.java fails with NPE after JDK-8244543

Reviewed-by: yan
Backport-of: 42bf70f8d8fb7f2b67690b5cc9c17e47588d0193

! src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/MarkUnsafeAccessTest.java