hg: jdk10/sandbox/jdk: 8182854: jshell tool: rerun multiline snippet from history corrupts history (jdk part)

[chris.hegarty at oracle.com]

Changeset: 9c96287c4ffd
Author:    rfield
Date:      2017-06-25 13:35 -0700
URL:       http://hg.openjdk.java.net/jdk10/sandbox/jdk/rev/9c96287c4ffd

8182854: jshell tool: rerun multiline snippet from history corrupts history (jdk part)
Summary: jdk sub-repo part of fix for parent issue 8182489, test in parent commit (langtools)
Reviewed-by: jlahoda

! src/jdk.internal.le/share/classes/jdk/internal/jline/extra/EditingHistory.java