git: openjdk/loom: fibers: Fix stack-walking

[duke]

Changeset: 06909933
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2020-08-17 22:02:39 +0000
URL:       https://git.openjdk.java.net/loom/commit/06909933

Fix stack-walking

! src/hotspot/share/classfile/javaClasses.hpp
! src/hotspot/share/classfile/javaClasses.inline.hpp
! src/hotspot/share/runtime/continuation.cpp
! src/hotspot/share/runtime/stackValue.hpp
! test/jdk/java/lang/Continuation/Fuzz.java
! test/jdk/java/lang/Continuation/fuzz.dat