git: openjdk/mobile: 8234359: [JVMCI] invalidate_nmethod_mirror shouldn't use a phantom reference

[duke]

Changeset: f81c192d
Author:    Tom Rodriguez <never at openjdk.org>
Date:      2019-11-25 11:13:02 +0000
URL:       https://git.openjdk.java.net/mobile/commit/f81c192d

8234359: [JVMCI] invalidate_nmethod_mirror shouldn't use a phantom reference

Reviewed-by: kvn, eosterlund

! src/hotspot/share/jvmci/jvmciRuntime.cpp