py: Use uintptr_t instead of mp_uint_t in MP_TAGPTR_* macros.

py/bc.h

@@ -99,10 +99,10 @@ const byte *mp_bytecode_print_str(const byte *ip);
 #define mp_bytecode_print_inst(code) mp_bytecode_print2(code, 1)
 
 // Helper macros to access pointer with least significant bits holding flags
-#define MP_TAGPTR_PTR(x) ((void*)((mp_uint_t)(x) & ~((mp_uint_t)3)))
-#define MP_TAGPTR_TAG0(x) ((mp_uint_t)(x) & 1)
-#define MP_TAGPTR_TAG1(x) ((mp_uint_t)(x) & 2)
-#define MP_TAGPTR_MAKE(ptr, tag) ((void*)((mp_uint_t)(ptr) | (tag)))
+#define MP_TAGPTR_PTR(x) ((void*)((uintptr_t)(x) & ~((uintptr_t)3)))
+#define MP_TAGPTR_TAG0(x) ((uintptr_t)(x) & 1)
+#define MP_TAGPTR_TAG1(x) ((uintptr_t)(x) & 2)
+#define MP_TAGPTR_MAKE(ptr, tag) ((void*)((uintptr_t)(ptr) | (tag)))
 
 #if MICROPY_PERSISTENT_CODE_LOAD || MICROPY_PERSISTENT_CODE_SAVE