ITlet -> setAlrExpectingOCurly (Just ALRLayoutLet)
ITof -> setAlrExpectingOCurly (Just ALRLayoutOf)
ITdo -> setAlrExpectingOCurly (Just ALRLayoutDo)
+ ITmdo -> setAlrExpectingOCurly (Just ALRLayoutDo)
+ ITrec -> setAlrExpectingOCurly (Just ALRLayoutDo)
_ -> return ()
return t