hg: openjfx/8/controls/rt: fix compile error in TreeTableColumn after bad merge

[hang.vo at oracle.com]

Changeset: 7847b4bf9ec5
Author:    David Grieve<david.grieve at oracle.com>
Date:      2013-01-16 18:45 -0500
URL:       http://hg.openjdk.java.net/openjfx/8/controls/rt/rev/7847b4bf9ec5

fix compile error in TreeTableColumn after bad merge

! javafx-ui-controls/src/javafx/scene/control/TreeTableColumn.java