Revert "Use slice syntax instead of slice_to, etc."

This reverts commit 40b9f5ded5.

src/libstd/num/i16.rs

@@ -17,6 +17,7 @@ use from_str::FromStr;
 use num::{ToStrRadix, FromStrRadix};
 use num::strconv;
 use option::Option;
+use slice::ImmutableSlice;
 use string::String;
 
 pub use core::i16::{BITS, BYTES, MIN, MAX};

src/libstd/num/i32.rs

@@ -17,6 +17,7 @@ use from_str::FromStr;
 use num::{ToStrRadix, FromStrRadix};
 use num::strconv;
 use option::Option;
+use slice::ImmutableSlice;
 use string::String;
 
 pub use core::i32::{BITS, BYTES, MIN, MAX};

src/libstd/num/i64.rs

@@ -17,6 +17,7 @@ use from_str::FromStr;
 use num::{ToStrRadix, FromStrRadix};
 use num::strconv;
 use option::Option;
+use slice::ImmutableSlice;
 use string::String;
 
 pub use core::i64::{BITS, BYTES, MIN, MAX};

src/libstd/num/i8.rs

@@ -17,6 +17,7 @@ use from_str::FromStr;
 use num::{ToStrRadix, FromStrRadix};
 use num::strconv;
 use option::Option;
+use slice::ImmutableSlice;
 use string::String;
 
 pub use core::i8::{BITS, BYTES, MIN, MAX};

src/libstd/num/int.rs

@@ -17,6 +17,7 @@ use from_str::FromStr;
 use num::{ToStrRadix, FromStrRadix};
 use num::strconv;
 use option::Option;
+use slice::ImmutableSlice;
 use string::String;
 
 pub use core::int::{BITS, BYTES, MIN, MAX};

src/libstd/num/int_macros.rs

@@ -78,7 +78,7 @@ pub fn to_str_bytes<U>(n: $T, radix: uint, f: |v: &[u8]| -> U) -> U {
         (write!(&mut wr, "{}", ::fmt::radix(n, radix as u8))).unwrap();
         wr.tell().unwrap() as uint
     };
-    f(buf[..amt])
+    f(buf.slice(0, amt))
 }
 
 #[deprecated = "use fmt::radix"]

src/libstd/num/strconv.rs

@@ -730,7 +730,7 @@ pub fn from_str_bytes_common<T:NumCast+Zero+One+PartialEq+PartialOrd+Div<T,T>+
         // parse remaining bytes as decimal integer,
         // skipping the exponent char
         let exp: Option<int> = from_str_bytes_common(
-            buf[i+1..len], 10, true, false, false, ExpNone, false,
+            buf.slice(i+1, len), 10, true, false, false, ExpNone, false,
             ignore_underscores);
 
         match exp {

src/libstd/num/u16.rs

@@ -17,6 +17,7 @@ use from_str::FromStr;
 use num::{ToStrRadix, FromStrRadix};
 use num::strconv;
 use option::Option;
+use slice::ImmutableSlice;
 use string::String;
 
 pub use core::u16::{BITS, BYTES, MIN, MAX};

src/libstd/num/u32.rs

@@ -17,6 +17,7 @@ use from_str::FromStr;
 use num::{ToStrRadix, FromStrRadix};
 use num::strconv;
 use option::Option;
+use slice::ImmutableSlice;
 use string::String;
 
 pub use core::u32::{BITS, BYTES, MIN, MAX};

src/libstd/num/u64.rs

@@ -17,6 +17,7 @@ use from_str::FromStr;
 use num::{ToStrRadix, FromStrRadix};
 use num::strconv;
 use option::Option;
+use slice::ImmutableSlice;
 use string::String;
 
 pub use core::u64::{BITS, BYTES, MIN, MAX};

src/libstd/num/u8.rs

@@ -17,6 +17,7 @@ use from_str::FromStr;
 use num::{ToStrRadix, FromStrRadix};
 use num::strconv;
 use option::Option;
+use slice::ImmutableSlice;
 use string::String;
 
 pub use core::u8::{BITS, BYTES, MIN, MAX};

src/libstd/num/uint.rs

@@ -17,6 +17,7 @@ use from_str::FromStr;
 use num::{ToStrRadix, FromStrRadix};
 use num::strconv;
 use option::Option;
+use slice::ImmutableSlice;
 use string::String;
 
 pub use core::uint::{BITS, BYTES, MIN, MAX};

src/libstd/num/uint_macros.rs

@@ -79,7 +79,7 @@ pub fn to_str_bytes<U>(n: $T, radix: uint, f: |v: &[u8]| -> U) -> U {
         (write!(&mut wr, "{}", ::fmt::radix(n, radix as u8))).unwrap();
         wr.tell().unwrap() as uint
     };
-    f(buf[..amt])
+    f(buf.slice(0, amt))
 }
 
 #[deprecated = "use fmt::radix"]