Update Jakefile with definitelyRunner.ts

Jakefile.js

@@ -106,6 +106,7 @@ var harnessCoreSources = [
     "loggedIO.ts",
     "rwcRunner.ts",
     "userRunner.ts",
+    "definitelyRunner.ts",
     "test262Runner.ts",
     "./parallel/shared.ts",
     "./parallel/host.ts",