state 40

   17 expr: expr '.' . funccall
   18     | expr '.' . IDENTIFIER
   19     | expr '.' . FUNCTION_CALL
   20     | expr '.' . IDENTIFIER block
   21     | expr '.' . FUNCTION_CALL block

    IDENTIFIER     shift, and go to state 59
    FUNCTION_CALL  shift, and go to state 60

    funccall  go to state 61