tests: enable ChangedExpressionSignal properties test

ChALkeR · ChALkeR · commit 840ebe6cf69f · 2016-12-23T02:30:45.000+03:00
It looks like it's no longer failing. Refs: qmlweb#102
diff --git a/tests/failingTests.js b/tests/failingTests.js
@@ -8,9 +8,6 @@ window.failingTests = {
     basic: [
       "SignalDisconnect"
     ],
-    properties: [
-      "ChangedExpressionSignal"
-    ],
     scope: [
       "object id should override same-named property of base object"
     ]
