scala/scala — pull request #3938 by gourlaysama (2014-08-21 08:17:57+00:00)
Title: SI-8764 fix return type of case class productElement under Xexperimental

Under `-Xexperimental`, `productElement` now returns the lub instead
of the weak lub of case class parameter types (numeric widening
shouldn't magically happen *inside* `productElement`).