hg: jdk9/dev/langtools: 8153716: JShell tool: should warn when failed to launch editor

[robert.field at oracle.com]

Changeset: 697549008e7f
Author:    rfield
Date:      2016-04-09 11:03 -0700
URL:       http://hg.openjdk.java.net/jdk9/dev/langtools/rev/697549008e7f

8153716: JShell tool: should warn when failed to launch editor
Summary: Catch launch exceptions. Split ToolBasicTest into two to provide place for regression test.
Reviewed-by: rfield
Contributed-by: kubota.yuji at gmail.com

! src/jdk.jshell/share/classes/jdk/internal/jshell/tool/JShellTool.java
! src/jdk.jshell/share/classes/jdk/internal/jshell/tool/resources/l10n.properties
! test/jdk/jshell/ReplToolTesting.java
! test/jdk/jshell/ToolBasicTest.java
+ test/jdk/jshell/ToolSimpleTest.java