fail_proc1       1206 gc/tests/test.c     	char *y = (char *)(size_t)fail_proc1;
fail_proc1       1235 gc/tests/test.c       GC_is_valid_displacement_print_proc = fail_proc1;
fail_proc1       1236 gc/tests/test.c       GC_is_visible_print_proc = fail_proc1;