test/javax/swing/JInternalFrame/6647340/bug6647340.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.

@@ -20,10 +20,11 @@
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 
 /* @test
+ * @key headful
  * @bug 6647340
  * @summary Checks that iconified internal frame follows
  *          the main frame borders properly.
  * @author Mikhail Lapshin
  */