8161019: javac, fold formatter options
Reviewed-by: mcimadamore, jjg

8142968: Module System implementation
Summary: Initial integration of JEP 200, JEP 260, JEP 261, and JEP 282
Reviewed-by: jjg, jlahoda, vromero, mcimadamore, bpatel, ksrini, darcy, anazarov, dfuchs
Contributed-by: alan.bateman@oracle.com, alex.buckley@oracle.com, jonathan.gibbons@oracle.com, karen.kinnear@oracle.com, mandy.chung@oracle.com, mark.reinhold@oracle.com, jan.lahoda@oracle.com, vicente.romero@oracle.com, andreas.lundblad@oracle.com, andrey.x.nazarov@oracle.com, chris.hegarty@oracle.com, erik.joelsson@oracle.com, kumar.x.srinivasan@oracle.com, sundararajan.athijegannathan@oracle.com

8129962: Investigate performance improvements in langtools combo tests
Summary: New combo API that runs all combo instances in a shared javac context (whenever possible).
Reviewed-by: jjg, jlahoda, vromero

8076543: Add @modules as needed to the langtools tests
Reviewed-by: jjg, shurailine

8058542: Devise scheme for better diagnostic creation
Summary: Add support for generating (at build-time) an enum-like class containing all javac diagnostics, which allows for safe diagnostic creation.
Reviewed-by: jlahoda, jjg, vromero, erikj, jfranck

8006694: temporarily workaround combo tests are causing time out in several platforms
Reviewed-by: jjg
Contributed-by: maurizio.cimadamore@oracle.com

8005167: execution time of combo tests in javac should be improved
Reviewed-by: jjg, jjh

7010608: the string 'error' should appear in error messages
Reviewed-by: mcimadamore

6943119: Rebrand source copyright notices
Reviewed-by: darcy

6410637: Make decision on deprecated methods in DefaultFileManager and BaseFileObject.
6747645: ZipFileObject.getName is incorrectly deprecated
6885123: JavaFileObject getName issues
Reviewed-by: mcimadamore

6769027: Source line should be displayed immediately after the first diagnostic line
Summary: Added support for customizing diagnostic output via API/command line flags
Reviewed-by: jjg