hg: openjfx/9-dev/rt: 8140503: Improve javafx.util.Pair hash code computation

[vadim.pakhnushev at oracle.com]

Changeset: c710a363647f
Author:    vadim
Date:      2015-11-24 12:09 +0300
URL:       http://hg.openjdk.java.net/openjfx/9-dev/rt/rev/c710a363647f

8140503: Improve javafx.util.Pair hash code computation
Reviewed-by: kcr, flar

! modules/base/src/main/java/javafx/util/Pair.java