Function rustc_middle::ich::hash_stable_trait_impls

pub fn hash_stable_trait_impls<'a>(
    hcx: &mut StableHashingContext<'a>, 
    hasher: &mut StableHasher, 
    blanket_impls: &[DefId], 
    non_blanket_impls: &FxHashMap<SimplifiedType, Vec<DefId>>
)