8036952: copyright issues in jdk9/dev/langtools filesSummary: Updated copyright notices.Reviewed-by: jjg, jlahoda
8013852: update reference impl for type-annotationsReviewed-by: jjgContributed-by: wdietl@gmail.com, steve.sides@oracle.com, joel.franck@oracle.com, alex.buckley@oracle.com