Run these tests on the headful systems only

Author: mrserb

test/jdk/java/awt/FileDialog/8003399/bug8003399.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -22,6 +22,7 @@
  */
 
 /* @test
+   @key headful
    @bug 8003399
    @summary JFileChooser gives wrong path to selected file when saving to Libraries folder on Windows 7
    @author Semyon Sadetsky
@@ -50,6 +51,9 @@ public static void main(String[] args) throws Exception {
                             String path = file1.getPath();
                             if(path.startsWith("::{") &&
                                     path.toLowerCase().endsWith(".library-ms")) {
+                                System.err.println("file = " + file);
+                                System.err.println("file1 = " + file1);
+                                System.err.println("path = " + path);
                                 throw new RuntimeException("Unconverted library link found");
                             }
                         }

test/jdk/java/awt/FileDialog/8017487/bug8017487.java

@@ -22,6 +22,7 @@
  */
 
 /* @test
+   @key headful
    @bug 8017487 8167988
    @summary filechooser in Windows-Libraries folder: columns are mixed up
    @author Semyon Sadetsky