test/java/awt/Focus/ClearGlobalFocusOwnerTest/ClearGlobalFocusOwnerTest.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.

*** 21,30 ****
--- 21,31 ----
   * questions.
   */
  
  /*
    @test
+   @key headful
    @bug 4390555
    @summary Synopsis: clearGlobalFocusOwner() is not trigerring permanent FOCUS_LOST event
    @author son@sparc.spb.su, anton.tarasov: area=awt.focus
    @library   ../../regtesthelpers
    @build Util