/// Is a `dyn B0 + ... + Bn` type allowed here?
fn is_explicit_dyn_type(&mut self) -> bool {
self.check_keyword(kw::Dyn)
- && (!self.token.uninterpolated_span().rust_2015()
+ && (!self.token.uninterpolated_span().is_rust_2015()
|| self.look_ahead(1, |t| {
(t.can_begin_bound() || t.kind == TokenKind::BinOp(token::Star))
&& !can_continue_type_after_non_fn_ident(t)