Add a bunch of tests for closed issues

Closes rust-lang#3907
Closes rust-lang#5493
Closes rust-lang#4464
Closes rust-lang#4759
Closes rust-lang#5666
Closes rust-lang#5884
Closes rust-lang#5926
Closes rust-lang#6318
Closes rust-lang#6557
Closes rust-lang#6898
Closes rust-lang#6919
Closes rust-lang#7222

Author: alexcrichton

src/test/auxiliary/iss.rs

@@ -0,0 +1,23 @@
+// 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.
+
+#[link(name="iss6919_3", vers="0.1")];
+
+// part of issue-6919.rs
+
+struct C<'self> {
+    pub k: &'self fn(),
+}
+
+fn no_op() { }
+pub static D : C<'static> = C {
+    k: no_op
+};
+

src/test/auxiliary/issue_3907.rs

@@ -0,0 +1,14 @@
+// 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.
+
+pub trait Foo {
+    fn bar();
+}
+

src/test/compile-fail/issue-3907.rs

@@ -0,0 +1,30 @@
+// 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.
+
+// aux-build:issue_3907.rs
+extern mod issue_3907;
+
+type Foo = issue_3907::Foo; //~ ERROR: reference to trait
+
+struct S {
+    name: int
+}
+
+impl Foo for S { //~ ERROR: Foo is not a trait
+    fn bar() { }
+}
+
+fn main() {
+    let s = S {
+        name: 0
+    };
+    s.bar();
+}
+

src/test/compile-fail/issue-5439.rs

@@ -0,0 +1,29 @@
+// 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.
+
+struct Foo {
+    foo: int,
+}
+
+struct Bar {
+    bar: int,
+}
+
+impl Bar {
+    fn make_foo (&self, i: int) -> ~Foo {
+        return ~Foo { nonexistent: self, foo: i }; //~ ERROR: no field named
+    }
+}
+
+fn main () {
+    let bar = Bar { bar: 1 };
+    let foo = bar.make_foo(2);
+    println(fmt!("%d", foo.foo));
+}

src/test/run-pass/issue-4464.rs

@@ -0,0 +1,13 @@
+// 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 broken<'r>(v: &'r [u8], i: uint, j: uint) -> &'r [u8] { v.slice(i, j) }
+
+pub fn main() {}

src/test/run-pass/issue-4759-1.rs

@@ -0,0 +1,13 @@
+// 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.
+
+trait U { fn f(self); }
+impl U for int { fn f(self) {} }
+pub fn main() { 4.f(); }

src/test/run-pass/issue-4759.rs

@@ -0,0 +1,25 @@
+// 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.
+
+struct T { a: ~int }
+
+trait U {
+    fn f(self);
+}
+
+impl U for ~int {
+    fn f(self) { }
+}
+
+pub fn main() {
+    let T { a: a } = T { a: ~0 };
+    a.f();
+}
+

src/test/run-pass/issue-5666.rs

@@ -0,0 +1,35 @@
+// 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.
+
+struct Dog {
+    name : ~str
+}
+
+trait Barks {
+    fn bark(&self) -> ~str;
+}
+
+impl Barks for Dog {
+    fn bark(&self) -> ~str {
+        return fmt!("woof! (I'm %s)", self.name);
+    }
+}
+
+
+pub fn main() {
+    let snoopy = ~Dog{name: ~"snoopy"};
+    let bubbles = ~Dog{name: ~"bubbles"};
+    let barker = [snoopy as ~Barks, bubbles as ~Barks];
+
+    for pup in barker.iter() {
+        println(fmt!("%s", pup.bark()));
+    }
+}
+

src/test/run-pass/issue-5884.rs

@@ -0,0 +1,24 @@
+// 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.
+
+pub struct Foo {
+    a: int,
+}
+
+struct Bar<'self> {
+    a: ~Option<int>,
+    b: &'self Foo,
+}
+
+fn check(a: @Foo) {
+    let mut _ic = Bar{ b: a, a: ~None };
+}
+
+pub fn main(){}

src/test/run-pass/issue-5926.rs

@@ -0,0 +1,17 @@
+// 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.
+
+pub fn main() {
+    let  mut your_favorite_numbers = @[1,2,3];
+    let  mut my_favorite_numbers = @[4,5,6];
+    let  f = your_favorite_numbers + my_favorite_numbers;
+    println(fmt!("The third favorite number is %?.", f))
+}
+