hg: jdk9/sandbox/jdk: Spec tweaks.

[paul.sandoz at oracle.com]

Changeset: fe6cb88206ca
Author:    psandoz
Date:      2016-01-09 16:26 +0100
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/fe6cb88206ca

Spec tweaks.
MethodHandles.Lookup.unreflectVarHandle ignores the
field's accessibility flag, thus final fields cannot
be stomped on by a VarHandle.

! src/java.base/share/classes/java/lang/invoke/MethodHandles.java
! src/java.base/share/classes/java/lang/invoke/VarHandle.java