auto merge of #19780 : jakub-/rust/e-needstest, r=alexcrichton

Closes #5988.
Closes #10176.
Closes #10456.
Closes #12744.
Closes #13264.
Closes #13324.
Closes #14182.
Closes #15381.
Closes #15444.
Closes #15480.
Closes #15756.
Closes #16822.
Closes #16966.
Closes #17351.
Closes #17503.
Closes #17545.
Closes #17771.
Closes #17816.
Closes #17897.
Closes #17905.
Closes #18188.
Closes #18232.
Closes #18345.
Closes #18389.
Closes #18400.
Closes #18502.
Closes #18611.
Closes #18783.
Closes #19009.
Closes #19081.
Closes #19098.
Closes #19127.
Closes #19135.

src/test/auxiliary/issue-16822.rs

@@ -0,0 +1,30 @@
+// 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.
+
+#![crate_type="lib"]
+
+use std::cell::RefCell;
+
+pub struct Window<Data>{
+    pub data: RefCell<Data>
+}
+
+impl<Data:  Update> Window<Data> {
+    pub fn update(&self, e: i32) {
+        match e {
+            1 => self.data.borrow_mut().update(),
+            _ => {}
+        }
+    }
+}
+
+pub trait Update {
+    fn update(&mut self);
+}

src/test/auxiliary/issue-18502.rs

@@ -0,0 +1,31 @@
+// 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.
+
+#![crate_type="lib"]
+
+struct Foo;
+// This is the ICE trigger
+struct Formatter;
+
+trait Show {
+    fn fmt(&self);
+}
+
+impl Show for Foo {
+    fn fmt(&self) {}
+}
+
+fn bar<T>(f: extern "Rust" fn(&T), t: &T) { }
+
+// ICE requirement: this has to be marked as inline
+#[inline]
+pub fn baz() {
+    bar(Show::fmt, &Foo);
+}

src/test/compile-fail/issue-10176.rs

@@ -0,0 +1,16 @@
+// 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.
+
+fn f() -> int {
+    (return 1, return 2)
+//~^ ERROR mismatched types: expected `int`, found `(_, _)` (expected int, found tuple)
+}
+
+fn main() {}

src/test/compile-fail/issue-14182.rs

@@ -0,0 +1,25 @@
+// 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.
+
+struct Foo {
+    f: for <'b> |&'b int|:
+      'b -> &'b int //~ ERROR use of undeclared lifetime name `'b`
+}
+
+fn main() {
+    let mut x: Vec< for <'a> ||
+       :'a //~ ERROR use of undeclared lifetime name `'a`
+    > = Vec::new();
+    x.push(|| {});
+
+    let foo = Foo {
+        f: |x| x
+    };
+}

src/test/compile-fail/issue-15381.rs

@@ -0,0 +1,20 @@
+// 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.
+
+fn main() {
+    let values: Vec<u8> = vec![1,2,3,4,5,6,7,8];
+
+    for
+        [x,y,z]
+//~^ ERROR refutable pattern in `for` loop binding: `[]` not covered
+        in values.as_slice().chunks(3).filter(|&xs| xs.len() == 3) {
+        println!("y={}", y);
+    }
+}

src/test/compile-fail/issue-15480.rs

@@ -0,0 +1,20 @@
+// 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.
+
+fn main() {
+    let v = vec![
+        &3i
+//~^ ERROR borrowed value does not live long enough
+    ];
+
+    for &&x in v.iter() {
+        println!("{}", x + 3);
+    }
+}

src/test/compile-fail/issue-15756.rs

@@ -0,0 +1,24 @@
+// 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.
+
+use std::slice::Chunks;
+use std::slice::MutChunks;
+
+fn dft_iter<'a, T>(arg1: Chunks<'a,T>, arg2: MutChunks<'a,T>)
+{
+    for
+    &something
+//~^ ERROR the trait `core::kinds::Sized` is not implemented for the type `[T]`
+    in arg2
+    {
+    }
+}
+
+fn main() {}

src/test/compile-fail/issue-16966.rs

@@ -0,0 +1,15 @@
+// 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.
+
+fn main() {
+    panic!(
+        1.2 //~ ERROR cannot determine a type for this expression
+    );
+}

src/test/compile-fail/issue-17545.rs

@@ -0,0 +1,18 @@
+// 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.
+
+#![feature(unboxed_closures)]
+
+pub fn foo<'a, F: Fn<(&'a (),), ()>>(bar: F) {
+    bar.call((
+        &(), //~ ERROR borrowed value does not live long enough
+    ));
+}
+fn main() {}

src/test/compile-fail/issue-17905.rs

@@ -0,0 +1,27 @@
+// 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.
+
+#[deriving(Show)]
+struct Pair<T, V> (T, V);
+
+impl Pair<
+    &str, //~ ERROR missing lifetime specifier
+    int
+> {
+    fn say(self: &Pair<&str, int>) {
+//~^ ERROR mismatched types: expected `Pair<&'static str, int>`, found `Pair<&str, int>`
+        println!("{}", self);
+    }
+}
+
+fn main() {
+    let result = &Pair("shane", 1i);
+    result.say();
+}

src/test/compile-fail/issue-18345.rs

@@ -0,0 +1,19 @@
+// 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.
+
+type Step<'s, R, T> = |R, T|: 's -> R;
+type Transducer<'t, R, T, U> = |Step<'t, R, U>|: 't -> Step<'t, R, T>;
+
+fn mapping<'f, R, T, U>(f: |T|: 'f -> U) -> &'f Transducer<'f, R, T, U> {
+    |step| |r, x|
+        step(r, f(x)) //~ ERROR the type of this value must be known in this context
+}
+
+fn main() {}

src/test/compile-fail/issue-18389.rs

@@ -0,0 +1,34 @@
+// 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.
+
+#![feature(unboxed_closures)]
+#![feature(associated_types)]
+
+use std::any::Any;
+use std::intrinsics::TypeId;
+
+pub trait Pt {}
+pub trait Rt {}
+
+trait Private<P: Pt, R: Rt> {
+    fn call(&self, p: P, r: R);
+}
+pub trait Public: Private<
+    <Self as Public>::P,
+//~^ ERROR illegal recursive type; insert an enum or struct in the cycle, if this is desired
+    <Self as Public>::R
+> {
+    type P;
+    type R;
+
+    fn call_inner(&self);
+}
+
+fn main() {}

src/test/compile-fail/issue-18400.rs

@@ -0,0 +1,36 @@
+// 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.
+
+trait Set<T> {
+    fn contains(&self, T) -> bool;
+    fn set(&mut self, T);
+}
+
+impl<'a, T, S> Set<&'a [T]> for S where
+    T: Copy,
+    S: Set<T>,
+{
+    fn contains(&self, bits: &[T]) -> bool {
+        bits.iter().all(|&bit| self.contains(bit))
+    }
+
+    fn set(&mut self, bits: &[T]) {
+        for &bit in bits.iter() {
+            self.set(bit)
+        }
+    }
+}
+
+fn main() {
+    let bits: &[_] = &[0, 1];
+
+    0.contains(bits);
+//~^ ERROR the trait `Set<_>` is not implemented for the type `_`
+}

src/test/compile-fail/issue-18611.rs

@@ -0,0 +1,22 @@
+// 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.
+
+#![feature(associated_types)]
+
+fn add_state(op:
+    <int as HasState>::State
+//~^ ERROR it is currently unsupported to access associated types except through a type parameter
+) {}
+
+trait HasState {
+    type State;
+}
+
+fn main() {}

src/test/compile-fail/issue-18783.rs

@@ -0,0 +1,37 @@
+// 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.
+
+use std::cell::RefCell;
+
+fn main() {
+    let c = RefCell::new(vec![]);
+    let mut y = 1u;
+    c.push(|| y = 0);
+    c.push(|| y = 0);
+//~^ ERROR cannot borrow `y` as mutable more than once at a time
+}
+
+fn ufcs() {
+    let c = RefCell::new(vec![]);
+    let mut y = 1u;
+
+    Push::push(&c, || y = 0);
+    Push::push(&c, || y = 0);
+}
+
+trait Push<'c> {
+    fn push<'f: 'c>(&self, push: ||:'f -> ());
+}
+
+impl<'c> Push<'c> for RefCell<Vec<||:'c>> {
+    fn push<'f: 'c>(&self, fun: ||:'f -> ()) {
+        self.borrow_mut().push(fun)
+    }
+}