simulation mem leak - latch names array in create latch (#996)

* latch names array didn't free before

* do strdup for two unincluded names in freeing and free all of them

* remove extra comment

Author: sdamghan

ODIN_II/SRC/read_blif.cpp

@@ -368,12 +368,12 @@ void create_latch_node_and_driver(FILE *file, Hashtable *output_nets_hash)
 
 	/* add names and type information to the created input pins */
 	npin_t *new_pin = allocate_npin();
-	new_pin->name = names[0];
+	new_pin->name = vtr::strdup(names[0]);
 	new_pin->type = INPUT;
 	add_input_pin_to_node(new_node, new_pin,0);
 
 	new_pin = allocate_npin();
-	new_pin->name = names[3];
+	new_pin->name = vtr::strdup(names[3]);
 	new_pin->type = INPUT;
 	add_input_pin_to_node(new_node, new_pin,1);
 
@@ -399,6 +399,9 @@ void create_latch_node_and_driver(FILE *file, Hashtable *output_nets_hash)
 	output_nets_hash->add(new_node->name, new_net);
 
 	/* Free the char** names */
+	for (i = 0; i < input_token_count; i++)
+		vtr::free(names[i]);
+			
 	vtr::free(names);
 	vtr::free(ptr);
 }