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

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

8032595: [macosx] setResizable(false) makes a frame slide down
Reviewed-by: serb, ddehaven, azvegint