./tests/patmat/t9289.scala:9: warning: match may not be exhaustive. It would fail on the following input: module.LetR() def patmat(tree: module.Tree) = tree match { ^ ./tests/patmat/t9289.scala:20: warning: match may not be exhaustive. It would fail on the following input: module.LetR() def patmat(tree: module.Tree) = tree match { ^ two warnings found