Auto merge of #21677 - japaric:no-range, r=alexcrichton

Note: Do not merge until we get a newer snapshot that includes #21374

There was some type inference fallout (see 4th commit) because type inference with `a..b` is not as good as with `range(a, b)` (see #21672).

r? @alexcrichton 

1 files changed, 3 insertions, 3 deletions

diff --git a/src/libserialize/hex.rs b/src/libserialize/hex.rs
index 33c5d7402f0..d3c2ffa9544 100644
--- a/src/libserialize/hex.rs
+++ b/src/libserialize/hex.rs
@@ -61,7 +61,7 @@ pub trait FromHex {
 }
 
 /// Errors that can occur when decoding a hex encoded string
-#[derive(Copy, Show)]
+#[derive(Copy, Debug)]
 pub enum FromHexError {
     /// The input contained a character not part of the hex format
     InvalidHexCharacter(char, uint),
@@ -185,14 +185,14 @@ mod tests {
 
     #[test]
     pub fn test_to_hex_all_bytes() {
-        for i in range(0u, 256) {
+        for i in 0u..256 {
             assert_eq!([i as u8].to_hex(), format!("{:02x}", i as uint));
         }
     }
 
     #[test]
     pub fn test_from_hex_all_bytes() {
-        for i in range(0u, 256) {
+        for i in 0u..256 {
             let ii: &[u8] = &[i as u8];
             assert_eq!(format!("{:02x}", i as uint).from_hex()
                                                    .unwrap(),