Enable pending scripted test

The test was failing because of missing type annotations on implicit
definitions.

Author: allanrenucci

sbt-dotty/sbt-test/source-dependencies/packageobject-and-traits/Baz.scala

@@ -1,3 +1,3 @@
 object Baz {
-	implicit val myNr = 1234
-}
+	implicit val myNr: Int = 1234
+}

sbt-dotty/sbt-test/source-dependencies/packageobject-and-traits/foo.scala2

@@ -1,3 +1,3 @@
 package object foo {
-	implicit val Foo = 123
-}
+	implicit val Foo: Int = 123
+}