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