Merge from rustc

Author: saethlin

tests/fail/function_pointers/execute_memory.rs

@@ -1,10 +1,8 @@
 // Validation makes this fail in the wrong place
 //@compile-flags: -Zmiri-disable-validation
 
-#![feature(box_syntax)]
-
 fn main() {
-    let x = box 42;
+    let x = Box::new(42);
     unsafe {
         let f = std::mem::transmute::<Box<i32>, fn()>(x);
         f() //~ ERROR: function pointer but it does not point to a function

tests/pass/drop_empty_slice.rs

@@ -1,7 +1,5 @@
-#![feature(box_syntax)]
-
 fn main() {
     // With the nested Vec, this is calling Offset(Unique::empty(), 0) on drop.
     let args: Vec<Vec<i32>> = Vec::new();
-    let _val = box args;
+    let _val = Box::new(args);
 }

tests/pass/dst-struct.rs

@@ -1,5 +1,3 @@
-#![feature(box_syntax)]
-
 struct Fat<T: ?Sized> {
     f1: isize,
     f2: &'static str,
@@ -109,14 +107,14 @@ pub fn main() {
     assert_eq!((*f2)[1], 2);
 
     // Nested Box.
-    let f1: Box<Fat<[isize; 3]>> = box Fat { f1: 5, f2: "some str", ptr: [1, 2, 3] };
+    let f1: Box<Fat<[isize; 3]>> = Box::new(Fat { f1: 5, f2: "some str", ptr: [1, 2, 3] });
     foo(&*f1);
     let f2: Box<Fat<[isize]>> = f1;
     foo(&*f2);
 
     let f3: Box<Fat<[isize]>> =
         Box::<Fat<[_; 3]>>::new(Fat { f1: 5, f2: "some str", ptr: [1, 2, 3] });
     foo(&*f3);
-    let f4: Box<Fat<[isize]>> = box Fat { f1: 5, f2: "some str", ptr: [1, 2, 3] };
+    let f4: Box<Fat<[isize]>> = Box::new(Fat { f1: 5, f2: "some str", ptr: [1, 2, 3] });
     foo(&*f4);
 }

tests/pass/heap.rs

@@ -1,13 +1,7 @@
-#![feature(box_syntax)]
-
 fn make_box() -> Box<(i16, i16)> {
     Box::new((1, 2))
 }
 
-fn make_box_syntax() -> Box<(i16, i16)> {
-    box (1, 2)
-}
-
 fn allocate_reallocate() {
     let mut s = String::new();
 
@@ -29,6 +23,5 @@ fn allocate_reallocate() {
 
 fn main() {
     assert_eq!(*make_box(), (1, 2));
-    assert_eq!(*make_box_syntax(), (1, 2));
     allocate_reallocate();
 }

tests/pass/intrinsics-integer.rs

@@ -1,12 +1,5 @@
-// Copyright 2012-2014 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.
+// SPDX-License-Identifier: MIT OR Apache-2.0
+// SPDX-FileCopyrightText: The Rust Project Developers (see https://thanks.rust-lang.org)
 
 #![feature(core_intrinsics)]
 use std::intrinsics::*;

tests/pass/intrinsics-math.rs

@@ -1,12 +1,5 @@
-// Copyright 2012-2014 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.
+// SPDX-License-Identifier: MIT OR Apache-2.0
+// SPDX-FileCopyrightText: The Rust Project Developers (see https://thanks.rust-lang.org)
 
 macro_rules! assert_approx_eq {
     ($a:expr, $b:expr) => {{

tests/pass/issues/issue-30530.rs

@@ -1,12 +1,5 @@
-// Copyright 2012-2016 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.
+// SPDX-License-Identifier: MIT OR Apache-2.0
+// SPDX-FileCopyrightText: The Rust Project Developers (see https://thanks.rust-lang.org)
 
 // Regression test for Issue #30530: alloca's created for storing
 // intermediate scratch values during brace-less match arms need to be

tests/pass/issues/issue-3794.rs

@@ -1,5 +1,3 @@
-#![feature(box_syntax)]
-
 trait T {
     fn print(&self);
 }
@@ -25,7 +23,7 @@ fn print_s(s: &S) {
 }
 
 pub fn main() {
-    let s: Box<S> = box S { s: 5 };
+    let s: Box<S> = Box::new(S { s: 5 });
     print_s(&*s);
     let t: Box<dyn T> = s as Box<dyn T>;
     print_t(&*t);

tests/pass/move-arg-2-unique.rs

@@ -1,11 +1,9 @@
-#![feature(box_syntax)]
-
 fn test(foo: Box<Vec<isize>>) {
     assert_eq!((*foo)[0], 10);
 }
 
 pub fn main() {
-    let x = box vec![10];
+    let x = Box::new(vec![10]);
     // Test forgetting a local by move-in
     test(x);
 }

tests/pass/move-arg-3-unique.rs

@@ -1,7 +1,5 @@
-#![feature(box_syntax)]
-
 pub fn main() {
-    let x = box 10;
+    let x = Box::new(10);
     let y = x;
     assert_eq!(*y, 10);
 }