8157137: [PIT] [TEST_BUG] compilation failed for some tests from jdk/test/java/awt/mixing/AWT_Mixing (can't find Helper)
Reviewed-by: ssadetsky

8159690: [TESTBUG] Mark headful tests with @key headful.
Reviewed-by: simonis, alexsch

8130125: [TEST_BUG] add @modules to the several client tests unaffected by the automated bulk update
Reviewed-by: serb, alexsch

8076468: Add @modules to tests in jdk_desktop test group
Reviewed-by: yan, alexsch

8044157: [TEST_BUG] Improve recently submitted AWT_Mixing tests
Reviewed-by: pchelko

8041592: [TEST_BUG] Move 42 AWT hw/lw mixing tests to jdk
Reviewed-by: anthony, pchelko