inpcom.c, free_function(), remove a memory leak

src/frontend/inpcom.c

@@ -2785,6 +2785,7 @@ free_function(struct function *fcn)
 
     tfree(fcn->name);
     tfree(fcn->body);
+    tfree(fcn->accept);
 
     for (i = 0; i < fcn->num_parameters; i++)
         tfree(fcn->params[i]);