8068431: @since and @jdk.Exported are missing in jdk.nashorn.api.scripting classes and package-info.java files Reviewed-by: attila, lagergren

^build/
^dist/
^webrev
^testoutput/
/nbproject/private/
^make/netbeans/.*/build/
^make/netbeans/.*/dist/
^.hgtip
.DS_Store