2014-01-05: add output for macro test (including a failure).

add output for macro test (including a failure).

diff --git a/examples/macros.w b/examples/macros.w
--- a/examples/macros.w
+++ b/examples/macros.w
@@ -30,3 +30,6 @@ define-syntax add-with-argument
    : _ a b ...
      #' + a b ...
 
+format #t "this breaks\n"
+add-with-argument 
+format #t "returns 1: ~A\n" : add-with-argument 1