[Integrated] RFR: 8236753: Animations do not play backwards after being stopped

[Nir Lisker]

Changeset: 9ae37f1f
Author:    Nir Lisker <nlisker at openjdk.org>
Date:      2020-01-22 20:58:12 +0000
URL:       https://git.openjdk.java.net/jfx/commit/9ae37f1f

8236753: Animations do not play backwards after being stopped

Reviewed-by: kcr, arapte

! modules/javafx.graphics/src/main/java/javafx/animation/Animation.java
! modules/javafx.graphics/src/test/java/test/javafx/animation/AnimationTest.java
! modules/javafx.graphics/src/test/java/test/javafx/animation/SequentialTransitionPlayTest.java