8205393: Add SourceVersion.RELEASE_13
8205394: Add source 13 and target 13 to javac
8205645: Bump maximum recognized class file version to 57 for JDK 13
8214825: Update preview language features for start of JDK 13
Reviewed-by: erikj, alanb, mchung, mcimadamore, dholmes, smarks, jjg
8205621: Increment JDK version for JDK 12
8193292: Add SourceVersion.RELEASE_12
8193290: Add source 12 and target 12 to javac
8205619: Bump maximum recognized class file version to 56 for JDK 12
Co-authored-by: Erik Joelsson <erik.joelsson@oracle.com>
Co-authored-by: Mikael Vidstedt <mikael.vidstedt@oracle.com>
Reviewed-by: alanb, smarks, jjg, mr, erikj, psandoz, dholmes
Initial integration of JEP 200, JEP 260, JEP 261, and JEP 282
Co-authored-by: Alex Buckley <alex.buckley@oracle.com>
Co-authored-by: Jonathan Gibbons <jonathan.gibbons@oracle.com>
Co-authored-by: Karen Kinnear <karen.kinnear@oracle.com>
Co-authored-by: Mandy Chung <mandy.chung@oracle.com>
Co-authored-by: Mark Reinhold <mark.reinhold@oracle.com>
Co-authored-by: Erik Joelsson <erik.joelsson@oracle.com>
Co-authored-by: Chris Hegarty <chris.hegarty@oracle.com>
Co-authored-by: Christian Tornqvist <christian.tornqvist@oracle.com>
Co-authored-by: Harold Seigel <harold.seigel@oracle.com>
Co-authored-by: Igor Ignatyev <igor.ignatyev@oracle.com>
Co-authored-by: James Laskey <james.laskey@oracle.com>
Co-authored-by: Jean-Francois Denise <jean-francois.denise@oracle.com>
Co-authored-by: Sundararajan Athijegannathan <sundararajan.athijegannathan@oracle.com>
Reviewed-by: alanb, mchung, tbell