test/java/awt/FullScreen/AltTabCrashTest/AltTabCrashTest.java

rev 14031 : 8159690: [TESTBUG] Mark headful tests with @key headful.

Backport of 14851:980da45565c8 from jdk9.  542/842 hunks applied directly from
the patch. 44 I resolved manually.  The remaining hunks are for filenames that
do not exist in jdk8u.

@@ -21,10 +21,11 @@
  * questions.
  */
 
 /*
  @test
+ @key headful
  @bug 6275887 6429971 6459792
  @summary Test that we don't crash when alt+tabbing in and out of
          fullscreen app
  @author Dmitri.Trembovetski@sun.com: area=FullScreen
  @run main/othervm/timeout=100  AltTabCrashTest -auto -changedm