{"ast_node_type":"function","tokens":[{"end":83,"kind":"keyword","start":0,"text":"pub(super)"}]}
    pub(super) fn suggest_add_missing_let_for_stmt(&mut self, err: &mut Diag<'a>) {
    /// `a: Ty = 1` -> `let a: Ty = 1`
        if self.token == token::Colon {