test/java/awt/im/memoryleak/InputContextMemoryLeakTest.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.

@@ -34,10 +34,11 @@
 import javax.swing.SwingUtilities;
 import test.java.awt.regtesthelpers.Util;
 
 /*
  @test
+ @key headful
  @bug 7079260
  @summary XInputContext leaks memory by needRecetXXIClient field
  @author Petr Pchelko
  @library ../../regtesthelpers
  @build Util