Split dst-dtor-{1,2} tests into four.

src/test/run-pass-valgrind/dst-dtor-1.rs

@@ -28,8 +28,7 @@ struct Fat<T: ?Sized> {
 
 pub fn main() {
     {
-        let _x: Box<(i32, Fat<Trait>)> =
+        let _x: Box<Fat<Trait>> = Box::<Fat<Foo>>::new(Fat { f: Foo });
-            Box::<(i32, Fat<Foo>)>::new((42, Fat { f: Foo }));
     }
     unsafe {
         assert!(DROP_RAN);

src/test/run-pass-valgrind/dst-dtor-2.rs

@@ -25,8 +25,7 @@ struct Fat<T: ?Sized> {
 
 pub fn main() {
     {
-        let _x: Box<(Fat<[Foo]>,)> =
+        let _x: Box<Fat<[Foo]>> = Box::<Fat<[Foo; 3]>>::new(Fat { f: [Foo, Foo, Foo] });
-            Box::<(Fat<[Foo; 3]>,)>::new((Fat { f: [Foo, Foo, Foo] },));
     }
     unsafe {
         assert_eq!(DROP_RAN, 3);

src/test/run-pass-valgrind/dst-dtor-3.rs

@@ -0,0 +1,32 @@
+// 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.
+
+// no-prefer-dynamic
+
+static mut DROP_RAN: bool = false;
+
+struct Foo;
+impl Drop for Foo {
+    fn drop(&mut self) {
+        unsafe { DROP_RAN = true; }
+    }
+}
+
+trait Trait { fn dummy(&self) { } }
+impl Trait for Foo {}
+
+pub fn main() {
+    {
+        let _x: Box<(i32, Trait)> = Box::<(i32, Foo)>::new((42, Foo));
+    }
+    unsafe {
+        assert!(DROP_RAN);
+    }
+}

src/test/run-pass-valgrind/dst-dtor-4.rs

@@ -0,0 +1,29 @@
+// 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.
+
+// no-prefer-dynamic
+
+static mut DROP_RAN: isize = 0;
+
+struct Foo;
+impl Drop for Foo {
+    fn drop(&mut self) {
+        unsafe { DROP_RAN += 1; }
+    }
+}
+
+pub fn main() {
+    {
+        let _x: Box<(i32, [Foo])> = Box::<(i32, [Foo; 3])>::new((42, [Foo, Foo, Foo]));
+    }
+    unsafe {
+        assert_eq!(DROP_RAN, 3);
+    }
+}