test/javax/swing/JScrollPane/HorizontalMouseWheelOnShiftPressed/HorizontalMouseWheelOnShiftPressed.java

rev 14031 : 8160974: [TESTBUG] Mark more headful tests with @key headful.

This is a backport of fe58d505fffd from jdk9. 228/596 hunks apply without
modifications. 16 hunks required manual rework. The remainder were for files
not present in jdk8u.

@@ -33,10 +33,11 @@
 
 import sun.awt.OSInfo;
 
 /**
  * @test
+ * @key headful
  * @bug 8033000 8147994
  * @author Alexander Scherbatiy
  * @summary No Horizontal Mouse Wheel Support In BasicScrollPaneUI
  * @run main HorizontalMouseWheelOnShiftPressed
  */