Function rustc_ast_lowering::compute_hir_hash

pub(crate) fn compute_hir_hash(
    sess: &Session, 
    definitions: &Definitions, 
    cstore: &CrateStoreDyn, 
    resolver: &ResolverOutputs, 
    owners: &IndexVec<LocalDefId, MaybeOwner<&OwnerInfo<'_>>>
) -> Fingerprint

Compute the hash for the HIR of the full crate. This hash will then be part of the crate_hash which is stored in the metadata.