test/javax/swing/JLayer/6824395/bug6824395.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
   * @summary Checks that JLayer inside JViewport works is correctly laid out
   * @author Alexander Potochkin
   * @run main bug6824395
   */