Review request for JDK-8133300: Ensure symbol table immutability in Nashorn AST

[Attila Szegedi]

Please review JDK-8133300 "Ensure symbol table immutability in Nashorn AST" at <http://cr.openjdk.java.net/~attila/8133300/webrev.jdk9> for <https://bugs.openjdk.java.net/browse/JDK-8133300>

Implementation notes for reviewers are here: <https://bugs.openjdk.java.net/browse/JDK-8133300?focusedCommentId=13837384&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13837384 <https://bugs.openjdk.java.net/browse/JDK-8133300?focusedCommentId=13837384&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13837384>>

Thanks,
  Attila.