Include new functions on syntatic part

Include functions that work with stack "num_vars".
Include code MEPA "DSVS" in procedures or functions.

Signed-off-by: Gustavo Toshi Komura <gtk10@c3sl.ufpr.br>
Correct way to read procedures or functions

Correct way to read procedures or functions and
insert MEPA code.

Signed-off-by: Gustavo Toshi Komura <gtk10@c3sl.ufpr.br>
Execute make

Signed-off-by: Gustavo Toshi Komura <gtk10@c3sl.ufpr.br>