error: syntax kind definitions must be `#[repr(u32)]` to derive `Syntax`
 --> tests/ui/repr/wrong_repr_u16.rs:4:1
  |
4 | / #[repr(u16)]
5 | | pub enum SyntaxKind {
6 | |     A,
7 | |     #[static_text("b")]
8 | |     B,
9 | | }
  | |_^