error: character does not fit within a u16 wide character
 --> $DIR/overflow_char.rs:3:37
  |
3 | const OVERFLOW_U16: u16 = wch!(u16, '💖');
  |                                     ^^^^

error: character does not fit within a i16 wide character
 --> $DIR/overflow_char.rs:4:37
  |
4 | const OVERFLOW_I16: i16 = wch!(i16, '💖');
  |                                     ^^^^