Added tests

src/test/pretty/cast-lt.pp

@@ -0,0 +1,26 @@
+#![feature(prelude_import)]
+#![no_std]
+#[prelude_import]
+use std::prelude::v1::*;
+#[macro_use]
+extern crate std as std;
+// Copyright 2014 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.
+
+// pretty-compare-only
+// pretty-mode:expanded
+// pp-exact:cast-lt.pp
+
+// #4264 fixed-length vector types
+
+macro_rules! negative(( $ e : expr ) => { $ e < 0 });
+
+fn main() { (1 as i32) < 0; }
+

src/test/pretty/cast-lt.rs

@@ -0,0 +1,24 @@
+// Copyright 2014 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.
+
+// pretty-compare-only
+// pretty-mode:expanded
+// pp-exact:cast-lt.pp
+
+// #4264 fixed-length vector types
+
+macro_rules! negative {
+      ($e:expr) => { $e < 0 }
+}
+
+fn main() {
+      negative!(1 as i32);
+}
+