test(errors): Skip test related to errors

Asserting error thrown no longer works as of ember 2.11
see [emberjs/ember.js#15013](emberjs/ember.js#15013) and [emberjs/ember-mocha#141](emberjs/ember-mocha#141)

tests/integration/helpers/array-contains-test.js

@@ -19,7 +19,9 @@ describeComponent('array-contains', 'helper:array-contains', { integration: true
     expect(this.$().text()).to.equal("false", "array should not contain anything");
   });
 
-  it('should throw error if array is invalid', function () {
+  // Asserting error thrown no longer works as of ember 2.11
+  // TODO: unkip once https://github.com/emberjs/ember.js/issues/15013 is resolved.
+  it.skip('should throw error if array is invalid', function () {
     this.set('array', 'any');
 
     expect(this.render.bind(this,hbs`{{array-contains array 'any'}}`))