hg: openjfx/9-dev/rt: 8155903: Crash while running imported/w3c/canvas/2d.gradient.interpolate.overlap2.html

[murali.billa at oracle.com]

Changeset: 3000af712724
Author:    mbilla
Date:      2016-05-13 01:30 +0530
URL:       http://hg.openjdk.java.net/openjfx/9-dev/rt/rev/3000af712724

8155903: Crash while running imported/w3c/canvas/2d.gradient.interpolate.overlap2.html
Reviewed-by: flar

! modules/graphics/src/main/java/com/sun/prism/impl/paint/MultipleGradientContext.java