Updated arrayContaining to require actual values to be arrays

If the actual value of a test was a string, this was matching against arrays
that contained the strings. This was due to the use of the contains matcher,
which against string looks for substrings, when it was intended to look for
array elements.

spec/core/asymmetric_equality/ArrayContainingSpec.js

@@ -31,6 +31,12 @@ describe("ArrayContaining", function() {
     expect(containing.asymmetricMatch(["bar"])).toBe(false);
   });
 
+  it("does not match when the actual is not an array", function() {
+    var containing = new jasmineUnderTest.ArrayContaining(["foo"]);
+
+    expect(containing.asymmetricMatch("foo")).toBe(false);
+  });
+
   it("jasmineToStrings itself", function() {
     var containing = new jasmineUnderTest.ArrayContaining([]);