XBT_DECLARE_ENUM_CLASS(MessageType, NONE, INITIAL_ADDRESSES, CONTINUE, IGNORE_HEAP, UNIGNORE_HEAP, IGNORE_MEMORY,
STACK_REGION, REGISTER_SYMBOL, DEADLOCK_CHECK, DEADLOCK_CHECK_REPLY, WAITING, SIMCALL_EXECUTE,
XBT_DECLARE_ENUM_CLASS(MessageType, NONE, INITIAL_ADDRESSES, CONTINUE, IGNORE_HEAP, UNIGNORE_HEAP, IGNORE_MEMORY,
STACK_REGION, REGISTER_SYMBOL, DEADLOCK_CHECK, DEADLOCK_CHECK_REPLY, WAITING, SIMCALL_EXECUTE,