hg: loom/loom: 4 new changesets

[ron.pressler at oracle.com]

Changeset: 1c32a18fb442
Author:    rpressler
Date:      2018-12-19 14:20 +0000
URL:       http://hg.openjdk.java.net/loom/loom/rev/1c32a18fb442

preempt API and some other Continuation API improvements

! src/hotspot/share/prims/stackwalk.cpp
! src/hotspot/share/runtime/continuation.cpp
! src/java.base/share/classes/java/lang/Continuation.java
! test/jdk/java/lang/Continuation/Basic.java
! test/jdk/java/lang/Continuation/Scoped.java

Changeset: 2929b0af5768
Author:    rpressler
Date:      2018-12-19 14:39 +0000
URL:       http://hg.openjdk.java.net/loom/loom/rev/2929b0af5768

merge

! src/java.base/share/classes/java/lang/Continuation.java
! src/java.base/share/classes/java/lang/Fiber.java

Changeset: 13fd84ac6844
Author:    rpressler
Date:      2018-12-19 14:41 +0000
URL:       http://hg.openjdk.java.net/loom/loom/rev/13fd84ac6844

remove unused set_anchor method

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

Changeset: 1290ed91a95d
Author:    rpressler
Date:      2018-12-19 14:41 +0000
URL:       http://hg.openjdk.java.net/loom/loom/rev/1290ed91a95d

merge