./tests/patmat/patmat-ortype.scala:8: warning: match may not be exhaustive.
It would fail on the following input: _: String
  def foo2a(x: Int | Double | String) = x match { // _: String not matched
                                          ^
./tests/patmat/patmat-ortype.scala:18: warning: match may not be exhaustive.
It would fail on the following input: Some(_: String), None
  def foo3(x: Option[Int | Double | String]) = x match { // warning: None, Some(_: String) not matched
                                                 ^
./tests/patmat/patmat-ortype.scala:36: warning: match may not be exhaustive.
It would fail on the following input: Some(_: String)
  def foo5b(x: Option[Int | Double | String]) = x match { // warning: Some(_: String) not matched
                                                  ^
three warnings found