; let -- The "sig_avails" is the stuff available. We get that from
-- the context of the type signature, BUT ALSO the lie_avail
-- so that polymorphic recursion works right (see Note [Polymorphic recursion])
local_meths = [mkMethInst sig mono_id | (_, Just sig, mono_id) <- mono_infos]
sig_avails = sig_lie ++ local_meths
; let -- The "sig_avails" is the stuff available. We get that from
-- the context of the type signature, BUT ALSO the lie_avail
-- so that polymorphic recursion works right (see Note [Polymorphic recursion])
local_meths = [mkMethInst sig mono_id | (_, Just sig, mono_id) <- mono_infos]
sig_avails = sig_lie ++ local_meths