Move float and int builtins into submodules

Author: mattico

src/add.rs renamed to src/float/add.rs

@@ -1,6 +1,8 @@
 use core::ops::*;
 use core::num::One;
 
+pub mod add;
+
 /// Trait for some basic operations on floats
 pub trait Float {
     /// A uint of the same with as the float

src/float.rs renamed to src/float/mod.rs

@@ -1,3 +1,7 @@
+pub mod mul;
+pub mod shift;
+pub mod sdiv;
+pub mod udiv;
 
 /// Trait for some basic operations on integers
 pub trait Int {

src/int.rs renamed to src/int/mod.rs

@@ -1,4 +1,4 @@
-use Int;
+use int::Int;
 
 macro_rules! div {
     ($intrinsic:ident: $ty:ty, $uty:ty) => {

src/mul.rs renamed to src/int/mul.rs

@@ -30,12 +30,6 @@ pub mod arm;
 #[cfg(target_arch = "x86_64")]
 pub mod x86_64;
 
-pub mod add;
-pub mod udiv;
-pub mod sdiv;
-pub mod mul;
-pub mod shift;
-
 #[cfg(test)]
 mod qc;