8162546: change hidden options -Xdebug to --debug, -XshouldStop to --should-stop, and -diags to --diags
Reviewed-by: mcimadamore

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

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

8062514: Update ToolTester tests to close file manager
Reviewed-by: darcy

8014363: javac test class ToolTester handles classpath incorrectly
Reviewed-by: ksrini

6962318: Update copyright year
Reviewed-by: xdono

6943119: Rebrand source copyright notices
Reviewed-by: darcy

6933914: fix missing newlines
Reviewed-by: ohair

6731573: diagnostic output should optionally include source line
Summary: Added an -XD option to optionally prints out source lines in error messages
Reviewed-by: jjg