Change Locals in calling convention

Just like the args, locals are now inlined into the Message.
Message is off course bigger, but as they are created at compile time, that hardly matters
Some programs did get somewhat smaller, especially with both changes, but not super much

lib/parfait/space.rb

@@ -58,8 +58,11 @@ module Parfait
     end
 
     def init_message_chain( message )
+      prev = nil
       while(message)
         message.initialize
+        message.caller = prev if prev
+        prev = message
         message = message.next_message
       end
     end