Modify the infinite loop function

Don't use `while True` b/c BooleanReplacer breaks this function's
test. This is a bit ugly but until Issue sixty-north#97 is fixed there is
no other way around it.

test_project/adam.py

@@ -47,5 +47,9 @@ def use_continue(limit):
 def trigger_infinite_loop():
     # When `break` becomes `continue`, this should enter an infinite loop. This
     # helps us test timeouts.
-    while True:
+    # Any object which isn't None passes the truth value testing so here
+    # we use `while object()` instead of `while True` b/c the later becomes
+    # `while False` when BooleanReplacer is applied and we don't trigger an
+    # infinite loop.
+    while object():
         break