hg: valhalla/valhalla/langtools: Fix: Ensure that comparison of nulls to value instances is disallowed

[maurizio.cimadamore at oracle.com]

Changeset: 2568113d414c
Author:    mcimadamore
Date:      2015-12-04 19:24 +0000
URL:       http://hg.openjdk.java.net/valhalla/valhalla/langtools/rev/2568113d414c

Fix: Ensure that comparison of nulls to value instances is disallowed
Contributed-by: srikanth.adayapalam at oracle.com

! src/jdk.compiler/share/classes/com/sun/tools/javac/code/Types.java
! test/tools/javac/valhalla/values/CheckNullAssign.java
! test/tools/javac/valhalla/values/CheckNullAssign.out