t3488.scala:4: warning: a pure expression does nothing in statement position
  println(foo { val List(_*)=List(0); 1 } ())
                                      ^
t3488.scala:4: warning: multiline expressions might require enclosing parentheses; a value can be silently discarded when Unit is expected
  println(foo { val List(_*)=List(0); 1 } ())
                                      ^
t3488.scala:5: warning: a pure expression does nothing in statement position
  println(foo { val List(_*)=List(0); 1 } (1))
                                      ^
t3488.scala:5: warning: multiline expressions might require enclosing parentheses; a value can be silently discarded when Unit is expected
  println(foo { val List(_*)=List(0); 1 } (1))
                                      ^
0
1