Mass rename uint/int to usize/isize

Now that support has been removed, all lingering use cases are renamed.

src/test/debuginfo/static-method-on-struct-and-enum.rs

@@ -56,26 +56,26 @@
 #![omit_gdb_pretty_printer_section]
 
 struct Struct {
-    x: int
+    x: isize
 }
 
 impl Struct {
 
-    fn static_method(arg1: int, arg2: int) -> int {
+    fn static_method(arg1: isize, arg2: isize) -> isize {
         zzz(); // #break
         arg1 + arg2
     }
 }
 
 enum Enum {
-    Variant1 { x: int },
+    Variant1 { x: isize },
     Variant2,
-    Variant3(f64, int, char),
+    Variant3(f64, isize, char),
 }
 
 impl Enum {
 
-    fn static_method(arg1: int, arg2: f64, arg3: uint) -> int {
+    fn static_method(arg1: isize, arg2: f64, arg3: usize) -> isize {
         zzz(); // #break
         arg1
     }