hg: jdk10/jdk10/langtools: 8182489: jshell tool: rerun multiline snippet from history corrupts history

[robert.field at oracle.com]

Changeset: 35ca6271f7d8
Author:    rfield
Date:      2017-06-25 13:38 -0700
URL:       http://hg.openjdk.java.net/jdk10/jdk10/langtools/rev/35ca6271f7d8

8182489: jshell tool: rerun multiline snippet from history corrupts history
Reviewed-by: jlahoda

+ test/jdk/jshell/ToolMultilineSnippetHistoryTest.java