alternate version of coerce-match test that avoids box syntax.

Author: pnkfelix

src/test/run-pass/coerce-match-calls.rs

@@ -0,0 +1,23 @@
+// 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.
+
+// Check that coercions are propagated through match and if expressions.
+
+use std::boxed::Box;
+
+pub fn main() {
+    let _: Box<[int]> = if true { Box::new([1i, 2, 3]) } else { Box::new([1i]) };
+
+    let _: Box<[int]> = match true { true => Box::new([1i, 2, 3]), false => Box::new([1i]) };
+
+    // Check we don't get over-keen at propagating coercions in the case of casts.
+    let x = if true { 42 } else { 42u8 } as u16;
+    let x = match true { true => 42, false => 42u8 } as u16;
+}