Test deriving hygiene

src/test/run-pass-fulldeps/deriving-hygiene.rs

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+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![feature(rustc_private)]
+extern crate serialize;
+
+pub const other: u8 = 1;
+pub const f: u8 = 1;
+pub const d: u8 = 1;
+pub const s: u8 = 1;
+pub const state: u8 = 1;
+pub const cmp: u8 = 1;
+
+#[derive(Ord,Eq,PartialOrd,PartialEq,Debug,Decodable,Encodable,Hash)]
+struct Foo {}
+
+fn main() {
+}