make neg/names-defaults-neg.scala work

retronym · retronym · commit 27e38bfe2b32 · 2017-09-06T15:55:59.000+10:00
diff --git a/src/reflect/scala/reflect/internal/Types.scala b/src/reflect/scala/reflect/internal/Types.scala
@@ -3558,15 +3558,15 @@ trait Types
    */
   case class NamedType(name: Name, tp: Type) extends Type {
     override def safeToString: String = name.toString +": "+ tp
-    override def mapOver(map: TypeMap): Type = throw new UnsupportedOperationException
+    override def mapOver(map: TypeMap): Type = this
   }
   /** As with NamedType, used only when calling isApplicable.
    *  Records that the application has a wildcard star (aka _*)
    *  at the end of it.
    */
   case class RepeatedType(tp: Type) extends Type {
     override def safeToString: String = tp + ": _*"
-    override def mapOver(map: TypeMap): Type = throw new UnsupportedOperationException
+    override def mapOver(map: TypeMap): Type = this
   }
 
   /** A temporary type representing the erasure of a user-defined value type.
