git: openjdk/loom: fibers: 3 new changesets

[duke]

Changeset: 13243e49
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2020-01-29 19:06:42 +0000
URL:       https://git.openjdk.java.net/loom/commit/13243e49

-

! src/hotspot/share/runtime/continuation.cpp

Changeset: 8949ca71
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2020-01-29 19:08:52 +0000
URL:       https://git.openjdk.java.net/loom/commit/8949ca71

Do not fix fp when traversing bottom cont frame

Fixes crash with +DeoptimizeALot

! src/hotspot/cpu/x86/frame_x86.inline.hpp
! src/hotspot/share/runtime/continuation.cpp

Changeset: 5a8053b8
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2020-01-29 19:44:29 +0000
URL:       https://git.openjdk.java.net/loom/commit/5a8053b8

Debugging helpers

! src/hotspot/share/gc/shared/collectedHeap.cpp
! src/hotspot/share/oops/oop.inline.hpp
! src/hotspot/share/runtime/continuation.cpp
! src/hotspot/share/runtime/continuation.hpp