Fix an ICE when a function argument is of the bottom type

Fixes #13352

src/test/run-pass/issue-13352.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.
+
+extern crate libc;
+
+fn foo(_: proc()) {}
+
+fn main() {
+    foo(loop {
+        unsafe { libc::exit(0 as libc::c_int); }
+    });
+    2u + (loop {});
+    -(loop {});
+}