8058180: .hgignore should be updated with webrev in all repos Reviewed-by: jrose, katleman, jjg

8058179: Global constants get in the way of self-modifying properties Reviewed-by: attila, jlaskey, sundar, lagergren

8058100: Reduce the RecompilableScriptFunctionData footprint Reviewed-by: jlaskey, lagergren

Merge

8057021: UserAccessorProperty guards fail with multiple globals Reviewed-by: attila, lagergren

8034954: Optimistic iteration in for-in and for-each Reviewed-by: hannesw, lagergren

8057703: More empty classes generated by Nashorn Reviewed-by: attila, sundar

8057931: Instead of not skipping small functions in parser, make lexer avoid them instead Reviewed-by: hannesw, sundar

8057930: remove eval ID Reviewed-by: hannesw, sundar

8057148: Skip nested functions on reparse Reviewed-by: hannesw, lagergren

8057678: Tests for let and const keywords in Nashorn Reviewed-by: hannesw, lagergren Contributed-by: Sergey Lugovoy <sergey.lugovoy@oracle.com>

8057742: ant clean test should not fail if one or more external test suites are missing Reviewed-by: lagergren, hannesw

8057588: Lots of trivial (empty) classes were generated by the Nashorn compiler as part of restOf-method generation Reviewed-by: attila, sundar, hannesw

8057611: Nashorn did not dump the JOx classes to disk when running with the -d flag Reviewed-by: attila, sundar, hannesw

Added tag jdk9-b30 for changeset 00bb2442d1d6