hg: openjfx/9-dev/rt: RT-38179: [TabPane] TableView in TabPane has memory leak

[chien.yang at oracle.com]

Changeset: e21951123bd1
Author:    Chien Yang <chien.yang at oracle.com>
Date:      2015-06-05 15:42 -0700
URL:       http://hg.openjdk.java.net/openjfx/9-dev/rt/rev/e21951123bd1

RT-38179: [TabPane] TableView in TabPane has memory leak
Reviewed-by: kcr

! modules/graphics/src/main/java/javafx/scene/Parent.java
! modules/graphics/src/test/java/javafx/scene/Parent_structure_sync_Test.java