rename non_iso.pl to iso_ext.pl (#265)

src/tests/builtins.pl

@@ -1,7 +1,7 @@
 :- module(tests_on_builtins, []).
 
 :- use_module(library(lists)).
-:- use_module(library(non_iso)).
+:- use_module(library(iso_ext)).
 
 test_queries_on_builtins :-
     \+ atom(_),

src/tests/call_with_inference_limit.pl

@@ -1,7 +1,7 @@
 :- module(tests_on_call_with_inference_limit, []).
 
 :- use_module(library(lists)).
-:- use_module(library(non_iso)).
+:- use_module(library(iso_ext)).
 
 :- dynamic(f/1).
 :- dynamic(g/1).

src/tests/setup_call_cleanup.pl

@@ -1,6 +1,6 @@
 :- module(test_on_setup_call_cleanup, []).
 
-:- use_module(library(non_iso)).
+:- use_module(library(iso_ext)).
 
 test_queries_on_setup_call_cleanup :-
     \+ setup_call_cleanup(false, _, _),