libcore: Remove all uses of `~str` from `libcore`.

[breaking-change]

2 files changed, 11 insertions, 3 deletions

diff --git a/src/libserialize/hex.rs b/src/libserialize/hex.rs
index 3b8500753cb..82ab5fd5b04 100644
--- a/src/libserialize/hex.rs
+++ b/src/libserialize/hex.rs
@@ -182,8 +182,16 @@ mod tests {
     #[test]
     pub fn test_from_hex_all_bytes() {
         for i in range(0, 256) {
-            assert_eq!(format!("{:02x}", i as uint).from_hex().unwrap().as_slice(), &[i as u8]);
-            assert_eq!(format!("{:02X}", i as uint).from_hex().unwrap().as_slice(), &[i as u8]);
+            assert_eq!(format!("{:02x}", i as uint).as_slice()
+                                                   .from_hex()
+                                                   .unwrap()
+                                                   .as_slice(),
+                       &[i as u8]);
+            assert_eq!(format!("{:02X}", i as uint).as_slice()
+                                                   .from_hex()
+                                                   .unwrap()
+                                                   .as_slice(),
+                       &[i as u8]);
         }
     }
 
diff --git a/src/libserialize/json.rs b/src/libserialize/json.rs
index e6f46ea7159..92e3d5a2688 100644
--- a/src/libserialize/json.rs
+++ b/src/libserialize/json.rs
@@ -2483,7 +2483,7 @@ mod tests {
 
         // We can't compare the strings directly because the object fields be
         // printed in a different order.
-        assert_eq!(a.clone(), from_str(a.to_str()).unwrap());
+        assert_eq!(a.clone(), from_str(a.to_str().as_slice()).unwrap());
         assert_eq!(a.clone(),
                    from_str(a.to_pretty_str().as_slice()).unwrap());
     }