Macros_Test_2.scala:2: warning: a pure expression does nothing in statement position; you may be omitting necessary parentheses
  def foo(x: Any) = macro {2; Impls.foo}
                           ^
Macros_Test_2.scala:2: error: missing arguments for method foo in object Impls;
follow this method with `_' if you want to treat it as a partially applied function
  def foo(x: Any) = macro {2; Impls.foo}
                                    ^
one warning found
one error found