test: Use #[deriving(Hash)] in a couple tests

src/test/run-pass/deriving-global.rs

@@ -27,18 +27,21 @@ mod submod {
     // function calls, then being in a submodule will (correctly)
     // cause errors about unrecognised module `std` (or `extra`)
     #[deriving(Eq, Ord, TotalEq, TotalOrd,
+               Hash,
                Clone, DeepClone,
                Show, Rand,
                Encodable, Decodable)]
     enum A { A1(uint), A2(int) }
 
     #[deriving(Eq, Ord, TotalEq, TotalOrd,
+               Hash,
                Clone, DeepClone,
                Show, Rand,
                Encodable, Decodable)]
     struct B { x: uint, y: int }
 
     #[deriving(Eq, Ord, TotalEq, TotalOrd,
+               Hash,
                Clone, DeepClone,
                Show, Rand,
                Encodable, Decodable)]

src/test/run-pass/deriving-meta-multiple.rs

@@ -10,8 +10,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[deriving(Eq)]
-#[deriving(Clone)]
+use std::hash::hash;
+
+#[deriving(Eq, Clone, Hash)]
 struct Foo {
     bar: uint,
     baz: int
@@ -22,4 +23,5 @@ pub fn main() {
 
     a == a;    // check for Eq impl w/o testing its correctness
     a.clone(); // check for Clone impl w/o testing its correctness
+    hash(&a);  // check for Hash impl w/o testing its correctness
 }

src/test/run-pass/deriving-meta.rs

@@ -10,7 +10,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[deriving(Eq, Clone)]
+use std::hash::hash;
+
+#[deriving(Eq, Clone, Hash)]
 struct Foo {
     bar: uint,
     baz: int
@@ -21,4 +23,5 @@ pub fn main() {
 
     a == a;    // check for Eq impl w/o testing its correctness
     a.clone(); // check for Clone impl w/o testing its correctness
+    hash(&a);  // check for Hash impl w/o testing its correctness
 }