squelch warnings in tests

Author: nikomatsakis

src/libstd/arc.rs

@@ -148,7 +148,7 @@ mod tests {
     #[test]
     fn auto_share_arc() {
         let v = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
-        let (res, arc_c) = shared_arc(v);
+        let (_res, arc_c) = shared_arc(v);
 
         let p = port();
         let c = chan(p);

src/libstd/test.rs

@@ -529,7 +529,7 @@ mod tests {
         let testfn = fn~() { };
         let mut tests = [];
         for vec::each(names) {|name|
-            let test = {name: name, fn: testfn, ignore: false,
+            let test = {name: name, fn: copy testfn, ignore: false,
                         should_fail: false};
             tests += [test];
         }
@@ -546,7 +546,7 @@ mod tests {
 
     let pairs = vec::zip(expected, filtered);
 
-    for vec::each(pairs) {|p| let (a, b) = p; assert (a == b.name); }
+    for vec::each(pairs) {|p| let (a, b) = copy p; assert (a == b.name); }
 }
 }