8144020: Remove long as an internal numeric type
Reviewed-by: attila, sundar, lagergren

8085885: address Javadoc warnings in Nashorn source code
Reviewed-by: hannesw, lagergren

8067215: Disable dual fields when not using optimistic types
Reviewed-by: attila, lagergren

8074545: Undefined object values in object literals with spill properties
Reviewed-by: lagergren, attila

8072626: Test for JDK-8068872 fails in tip
Reviewed-by: lagergren, jlaskey

8062141: Various performance issues parsing JSON
Reviewed-by: lagergren, attila

8061391: concat as a builtin optimistic form, had to remove NoTypedArrayData and replace it, as we throw away a lot of optimistic link opportunities with NoTypedArrayData not being Continuous
Reviewed-by: attila, hannesw

8054834: Modular Source Code
Reviewed-by: alanb, chegar, ihse, mduigou
Contributed-by: alan.bateman@oracle.com, alex.buckley@oracle.com, chris.hegarty@oracle.com, erik.joelsson@oracle.com, jonathan.gibbons@oracle.com, karen.kinnear@oracle.com, magnus.ihse.bursie@oracle.com, mandy.chung@oracle.com, mark.reinhold@oracle.com, paul.sandoz@oracle.com