typesafe_cb, hashtable: revise typesafe_cb arg order, neaten.
[ccan] / ccan / likely /
drwxr-xr-x   ..
-rw-r--r-- 986 _info
-rw-r--r-- 3190 likely.c
-rw-r--r-- 3633 likely.h
drwxr-xr-x - test