t8430.scala:15: warning: match may not be exhaustive.
It would fail on the following inputs: LetC, LetF, LetL(BooleanLit), LetL(IntLit), LetL(UnitLit), LetP
  (tree: Tree) => tree match {case LetL(CharLit) => ??? }
                  ^
t8430.scala:16: warning: match may not be exhaustive.
It would fail on the following inputs: LetC, LetF, LetL(BooleanLit), LetL(IntLit), LetL(UnitLit), LetP
  (tree: Tree) => tree match {case LetL(CharLit) => ??? }
                  ^
t8430.scala:17: warning: match may not be exhaustive.
It would fail on the following inputs: LetC, LetF, LetL(BooleanLit), LetL(IntLit), LetL(UnitLit), LetP
  (tree: Tree) => tree match {case LetL(CharLit) => ??? }
                  ^
t8430.scala:18: warning: match may not be exhaustive.
It would fail on the following inputs: LetC, LetF, LetL(BooleanLit), LetL(IntLit), LetL(UnitLit), LetP
  (tree: Tree) => tree match {case LetL(CharLit) => ??? }
                  ^
t8430.scala:19: warning: match may not be exhaustive.
It would fail on the following inputs: LetC, LetF, LetL(BooleanLit), LetL(IntLit), LetL(UnitLit), LetP
  (tree: Tree) => tree match {case LetL(CharLit) => ??? }
                  ^
t8430.scala:20: warning: match may not be exhaustive.
It would fail on the following inputs: LetC, LetF, LetL(BooleanLit), LetL(IntLit), LetL(UnitLit), LetP
  (tree: Tree) => tree match {case LetL(CharLit) => ??? }
                  ^
error: No warnings can be incurred under -Xfatal-warnings.
6 warnings found
one error found