hg: jigsaw/jake/jdk: Update ImageFileCreatorTest due to internal API change

[mandy . chung]

Changeset: 7d736133127e
Author:    mchung
Date:      2016-02-16 08:45 -0800
URL:       http://hg.openjdk.java.net/jigsaw/jake/jdk/rev/7d736133127e

Update ImageFileCreatorTest due to internal API change

! test/jdk/jigsaw/tools/jlink/ImageFileCreatorTest.java