Fix Time.msleep() when inlined in a loop

src/hulk/time.d

@@ -34,7 +34,7 @@ struct Time
      */
     public static void msleep(ulong count)
     {
-        ulong wait_for = s_uptime + count + 1;
+        ulong wait_for = uptime() + count + 1;
         while (uptime() < wait_for)
         {
         }