RFR (XXS) 8174862: JShell tests: new JDK-8174797 testInvalidClassPath fails on Windows

[Robert Field]

A new test uses a platform-dependent file separator ("/").  The test 
doesn't need a file separator.  Fix is simply to remove it from command 
and expected resulting error.
Second failure is just this same test inherited.
Please review....

Bug:

     https://bugs.openjdk.java.net/browse/JDK-8174862

hg diff --

--- a/test/jdk/jshell/ToolSimpleTest.java       Mon Feb 13 12:14:23 2017 
-0800
+++ b/test/jdk/jshell/ToolSimpleTest.java       Mon Feb 13 13:07:20 2017 
-0800
@@ -214,8 +214,8 @@
      @Test
      public void testInvalidClassPath() {
          test(
-                a -> assertCommand(a, "/env --class-path snurge/fusal",
-                        "|  File 'snurge/fusal' for '--class-path' is 
not found.")
+                a -> assertCommand(a, "/env --class-path snurgefusal",
+                        "|  File 'snurgefusal' for '--class-path' is 
not found.")
          );
      }



Thanks,
Robert