message: Fix warnings in unit test
diff: @@ -28,13 +28,13 @@ static STATIC_SIMPLE_FN: &fn(&[u8]) -> &[u8] = &(id_u8_slice as fn(&[u8]) -> &[u
  const CONST_SIMPLE_FN: &fn(&[u8]) -> &[u8] = &(id_u8_slice as fn(&[u8]) -> &[u8]);
  // this should be the same as without elision
  -static STATIC_NON_ELIDED_fN: &for<'a> fn(&'a [u8]) -> &'a [u8] =
  +static STATIC_NON_ELIDED_FN: &for<'a> fn(&'a [u8]) -> &'a [u8] =
  &(id_u8_slice as for<'a> fn(&'a [u8]) -> &'a [u8]);
  -const CONST_NON_ELIDED_fN: &for<'a> fn(&'a [u8]) -> &'a [u8] =
  +const CONST_NON_ELIDED_FN: &for<'a> fn(&'a [u8]) -> &'a [u8] =
  &(id_u8_slice as for<'a> fn(&'a [u8]) -> &'a [u8]);
  // another function that elides, each to a different unbound lifetime
  -fn multi_args(a: &u8, b: &u8, c: &u8) {}
  +fn multi_args(_a: &u8, _b: &u8, _c: &u8) {}
  static STATIC_MULTI_FN: &fn(&u8, &u8, &u8) = &(multi_args as fn(&u8, &u8, &u8));
  const CONST_MULTI_FN: &fn(&u8, &u8, &u8) = &(multi_args as fn(&u8, &u8, &u8));
  