hg: jdk/jdk: 8191306: Math.abs corner case with optimistic typing

[sundararajan.athijegannathan at oracle.com]

Changeset: 6cc6869999e2
Author:    sundar
Date:      2017-11-15 19:55 +0530
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/6cc6869999e2

8191306: Math.abs corner case with optimistic typing
Reviewed-by: jlaskey, hannesw

! src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/objects/NativeMath.java
+ test/nashorn/script/basic/JDK-8191306.js
+ test/nashorn/script/basic/JDK-8191306.js.EXPECTED