Trent Mick: change a few casts for Win64 compatibility.

Objects/classobject.c

@@ -283,7 +283,7 @@ set_name(c, v)
 {
 	if (v == NULL || !PyString_Check(v))
 		return "__name__ must be a string object";
-	if ((long)strlen(PyString_AS_STRING(v)) != PyString_GET_SIZE(v))
+	if (strlen(PyString_AS_STRING(v)) != (size_t)PyString_GET_SIZE(v))
 		return "__name__ must not contain null bytes";
 	set_slot(&c->cl_name, v);
 	return "";

Objects/object.c

@@ -366,7 +366,7 @@ make_pair(v, w)
 	if (pair == NULL) {
 		return NULL;
 	}
-	if ((long)v <= (long)w) {
+	if (v <= w) {
 		PyTuple_SET_ITEM(pair, 0, PyLong_FromVoidPtr((void *)v));
 		PyTuple_SET_ITEM(pair, 1, PyLong_FromVoidPtr((void *)w));
 	} else {