Replace int types in Retro code

Retro seemingly avoided using the Dolphin
typedefs in most places, opting to use int/uint
instead. This likely means they didn't use
u8/s8/u16/s16/etc either.


Former-commit-id: 133326ae40

include/rstl/red_black_tree.hpp

@@ -47,8 +47,8 @@ public:
   };
 
 private:
-  u8 x0_;
-  u8 x1_;
+  uchar x0_;
+  uchar x1_;
   uint x4_;
   uint x8_;
   uint xc_;