code: def function_body_action(self, text, loc, fun):
          
          exshared.setpos(loc, text)
          if DEBUG > 0:
              print("FUN_BODY:",fun)
              if DEBUG == 2: self.symtab.display()
              if DEBUG > 2: return
          self.codegen.function_body()
docs: Code executed after recognising the beginning of function's body