{"ast_node_type":"variable","tokens":[{"end":74,"kind":"keyword","start":0,"text":"let"}]}
        let (is_ref, from_mt, from_inner) = match from_ty.kind(Interner) {
    fn coerce_ptr(&mut self, from_ty: Ty, to_ty: &Ty, to_mt: Mutability) -> CoerceResult {
            TyKind::Ref(mt, _, ty) => (true, mt, ty),