Add xfailed test for #3707

Author: catamorphism

src/test/compile-fail/issue-3707.rs

@@ -0,0 +1,29 @@
+// Copyright 2012 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.
+
+// xfail-test
+struct Obj {
+    member: uint
+}
+
+impl Obj {
+    static pure fn boom() -> bool {
+        return 1+1 == 2
+    }
+    pure fn chirp() {
+        self.boom(); //~ ERROR wat
+    }
+}
+
+fn main() {
+    let o = Obj { member: 0 };
+    o.chirp();
+    1 + 1;
+}