libsyntax: Remove ~fn() from the language

src/test/compile-fail/issue-8615.rs

@@ -1,14 +0,0 @@
-// Copyright 2013 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.
-
-fn main() {
-    let _: @'static whatever fn(); //~ ERROR expected `fn`, found `whatever`
-    let _: @'static fn();
-}

src/test/compile-fail/once-cant-call-twice-on-heap.rs

@@ -16,7 +16,7 @@ extern mod extra;
 use extra::arc;
 use std::util;
 
-fn foo(blk: ~once fn()) {
+fn foo(blk: proc()) {
     blk();
     blk(); //~ ERROR use of moved value
 }

src/test/run-pass/once-move-out-on-heap.rs

@@ -17,7 +17,7 @@ extern mod extra;
 use extra::arc;
 use std::util;
 
-fn foo(blk: ~once fn()) {
+fn foo(blk: proc()) {
     blk();
 }