Auto merge of #25161 - jooert:moretests, r=alexcrichton

The last one (at least for the moment 😃).

r? @alexcrichton

src/test/compile-fail/issue-21177.rs

@@ -0,0 +1,19 @@
+// Copyright 2015 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 Trait {
+    type A;
+    type B;
+}
+
+fn foo<T: Trait<A = T::B>>() { }
+//~^ ERROR: unsupported cyclic reference between types/traits detected
+
+fn main() { }

src/test/compile-fail/issue-21701.rs

@@ -0,0 +1,25 @@
+// Copyright 2015 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 foo<U>(t: U) {
+    let y = t();
+//~^ ERROR: expected function, found `U`
+}
+
+struct Bar;
+
+pub fn some_func() {
+    let f = Bar();
+//~^ ERROR: expected function, found `Bar`
+}
+
+fn main() {
+    foo(|| { 1 });
+}

src/test/compile-fail/issue-22037.rs

@@ -0,0 +1,27 @@
+// Copyright 2015 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 A {
+    type Output;
+    fn a(&self) -> <Self as A>::X;
+//~^ ERROR: use of undeclared associated type `A::X`
+}
+
+impl A for u32 {
+    type Output = u32;
+    fn a(&self) -> u32 {
+        0
+    }
+}
+
+fn main() {
+    let a: u32 = 0;
+    let b: u32 = a.a();
+}

src/test/run-make/issue-20626/Makefile

@@ -0,0 +1,8 @@
+-include ../tools.mk
+
+# Test output to be four
+# The original error only occurred when printing, not when comparing using assert!
+
+all:
+	$(RUSTC) foo.rs -O
+	[ `$(call RUN,foo)` = "4" ]

src/test/run-make/issue-20626/foo.rs

@@ -0,0 +1,23 @@
+// Copyright 2015 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 identity(a: &u32) -> &u32 { a }
+
+fn print_foo(f: &fn(&u32) -> &u32, x: &u32) {
+    print!("{}", (*f)(x));
+}
+
+fn main() {
+    let x = &4;
+    let f: fn(&u32) -> &u32 = identity;
+
+    // Didn't print 4 on optimized builds
+    print_foo(&f, x);
+}

src/test/run-pass/issue-21562.rs

@@ -0,0 +1,27 @@
+// Copyright 2015 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(core)]
+
+extern crate core;
+use core::marker::Sync;
+
+static SARRAY: [i32; 1] = [11];
+
+struct MyStruct {
+    pub arr: *const [i32],
+}
+unsafe impl Sync for MyStruct {}
+
+static mystruct: MyStruct = MyStruct {
+    arr: &SARRAY
+};
+
+fn main() {}

src/test/run-pass/issue-22258.rs

@@ -0,0 +1,19 @@
+// Copyright 2015 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::ops::Add;
+
+fn f<T: Add>(a: T, b: T) -> <T as Add>::Output {
+    a + b
+}
+
+fn main() {
+    println!("a + b is {}", f::<f32>(100f32, 200f32));
+}

src/test/run-pass/issue-22463.rs

@@ -0,0 +1,29 @@
+// Copyright 2015 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.
+
+macro_rules! items {
+    () => {
+        type A = ();
+        fn a() {}
+    }
+}
+
+trait Foo {
+    type A;
+    fn a();
+}
+
+impl Foo for () {
+    items!();
+}
+
+fn main() {
+
+}