hg: jdk9/sandbox/nashorn: 8133549: Generalize jshell's EditingHistory

[chris.hegarty at oracle.com]

Changeset: be28ce2f1054
Author:    jlahoda
Date:      2016-05-18 21:00 +0200
URL:       http://hg.openjdk.java.net/jdk9/sandbox/nashorn/rev/be28ce2f1054

8133549: Generalize jshell's EditingHistory
Summary: Using a generic EditingHistory in jjs
Reviewed-by: sundar

! src/jdk.scripting.nashorn.shell/share/classes/jdk/nashorn/tools/jjs/Console.java
! src/jdk.scripting.nashorn.shell/share/classes/jdk/nashorn/tools/jjs/HistoryObject.java
! src/jdk.scripting.nashorn.shell/share/classes/jdk/nashorn/tools/jjs/NashornCompleter.java