test/win32ole/test_win32ole_variant.rb: use other than Integer

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55046 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/win32ole/test_win32ole_variant.rb

@@ -523,9 +523,9 @@ if defined?(WIN32OLE_VARIANT)
 
     def test_create_vt_array_exc
       exc = assert_raise(TypeError) {
-        WIN32OLE_VARIANT.new(1, WIN32OLE::VARIANT::VT_ARRAY);
+        WIN32OLE_VARIANT.new("", WIN32OLE::VARIANT::VT_ARRAY)
       }
-      assert_match(/wrong argument type Fixnum \(expected Array\)/, exc.message)
+      assert_match(/wrong argument type String \(expected Array\)/, exc.message)
     end
 
     def test_create_vt_array_str2ui1array