Lower anonymous structs or unions to HIR

Author: frank-king

src/types.rs

@@ -806,8 +806,8 @@ impl Rewrite for ast::Ty {
  ast::TyKind::Tup(ref items) => {
  rewrite_tuple(context, items.iter(), self.span, shape, items.len() == 1)
  }
- ast::TyKind::AnonStruct(_) => Some(context.snippet(self.span).to_owned()),
- ast::TyKind::AnonUnion(_) => Some(context.snippet(self.span).to_owned()),
+ ast::TyKind::AnonStruct(..) => Some(context.snippet(self.span).to_owned()),
+ ast::TyKind::AnonUnion(..) => Some(context.snippet(self.span).to_owned()),
  ast::TyKind::Path(ref q_self, ref path) => {
  rewrite_path(context, PathContext::Type, q_self, path, shape)
  }