checkpoint pcwalton test of new destructor static semantics.

Author: pnkfelix

src/test/compile-fail/destructor-restrictions.rs

@@ -0,0 +1,21 @@
+// 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.
+
+// Tests the new destructor semantics.
+
+use std::cell::RefCell;
+
+fn main() {
+    let b = {
+        let a = box RefCell::new(4i);
+        *a.borrow() + 1i    //~ ERROR `*a` does not live long enough
+    };
+    println!("{}", b);
+}