test the pre-5.8.3 weak_ref setter code on newer perls too
-rw-r--r-- .gitignore
-rw-r--r-- Changes
-rw-r--r-- Makefile.PL
drwxr-xr-x benchmark
drwxr-xr-x lib
drwxr-xr-x maint
drwxr-xr-x t
drwxr-xr-x xt