8160974: [TESTBUG] Mark more headful tests with @key headful.
Reviewed-by: serb, simonis

8063102: Change open awt regression tests to avoid sun.awt.SunToolkit.realSync, part 1
Reviewed-by: pchelko, serb

6596915: JCK-runtime-6a/tests/api/java_awt/Component/index.html tesPaintAll fails
Reviewed-by: art, dcherepanov, anthony