hg: jdk9/client/jdk: 8160266: [macosx] NestedModalDialogTest.java and NestedModelessDialogTest.java tests does not run with current JDK codebase after taking the files from MACOSX_PORT

[rajeev.chamyal at oracle.com]

Changeset: 4e6f371bff5d
Author:    mhalder
Date:      2016-07-18 16:45 +0530
URL:       http://hg.openjdk.java.net/jdk9/client/jdk/rev/4e6f371bff5d

8160266: [macosx] NestedModalDialogTest.java and NestedModelessDialogTest.java tests does not run with current JDK codebase after taking the files from MACOSX_PORT
Reviewed-by: alexsch, rchamyal
Contributed-by: manajit.halder at oracle.com

+ test/java/awt/Dialog/NestedDialogs/Modal/NestedModalDialogTest.java
+ test/java/awt/Dialog/NestedDialogs/Modeless/NestedModelessDialogTest.java
+ test/java/awt/regtesthelpers/VisibilityValidator.java
+ test/java/awt/regtesthelpers/Waypoint.java