This setting should be restored, no?

In reflect/internal/Types.scala:

```scala
                        if (forInteractive) {
                          val saved = settings.uniqid.value
                          try {
                            settings.uniqid.value = true
                            println("*** stale type parameter: " + tp + sym.locationString + " cannot be instantiated from " + pre.widen)
                            println("*** confused with params: " + sym + " in " + sym.owner + " not in " + ps + " of " + basesym)
                            println("*** stacktrace = ")
                            new Error().printStackTrace()
                          } finally settings.uniqid.value = saved
                          instParamRelaxed(basesym.typeParams, baseargs)
                        } else throwError
```