Test nested `proc` can access outer owned data

Fixes #10682

src/test/run-pass/issue-10682.rs

+// 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.
+
+// Regression test for issue #10682
+// Nested `proc` usage can't use outer owned data
+
+fn work(_: ~int) {}
+fn foo(_: proc()) {}
+
+pub fn main() {
+  let a = ~1;
+  foo(proc() { foo(proc() { work(a) }) })
+}