test/javax/swing/JTabbedPane/8007563/Test8007563.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.

*** 31,40 ****
--- 31,41 ----
  import static javax.swing.UIManager.*;
  import static javax.swing.SwingUtilities.*;
  
  /*
   * @test
+  * @key headful
   * @bug 8007563
   * @summary Tests JTabbedPane background
   * @author Sergey Malenkov
   */