1f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define bar(failure) failure 2f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define foo bar(success) 3f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgfoo 4