8133119: Error message associated with TypeError for call and new should include stringified Node
Reviewed-by: attila, mhaupt

8079362: Enforce best practices for Node token API usage
Reviewed-by: hannesw, sundar

8075448: nashorn parser API returns init variable tree object of a for loop after for loop statement tree object
Reviewed-by: lagergren, hannesw, attila

8059844: Implement optimistic splitter
Reviewed-by: hannesw, lagergren

8059843: Make AST serializable
Reviewed-by: hannesw, lagergren

8012518: Reengineer Parser.java to make it play well with the copy-on-write IR.
Summary: Remove the kludges introduced to make the parser work with the copy on write IR. Now everything is done bottom up, finshing node children completely before node parents. The repeated non-functional pattern 'node = node.setSomething(something);' is gone. Resulting code is much more readable, and extensible for future work. The parser is now also consistent with the rest of the stateless copy-on-write world in code generation.
Reviewed-by: lagergren, attila, hannesw, shade
Contributed-by: andreas.gabrielsson@oracle.com

8055913: Node.hashCode() delegates to Object.hashCode() and is hot
Reviewed-by: lagergren, sundar

Merge

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